Summary:Rhythm of War

This page contains a chapter by chapter summary of Rhythm of War. We hope this summary will make it easier to find specific areas of the book, as well as providing a quick plot refresher for anyone who doesn't want to take the time to reread the entire book.

Prologue: To Pretend

Part 1: Burdens

Chapter 1: Calluses

First, you must get a spren to approach.

The type of gemstone is relevant; some spren are naturally more intrigued by certain gemstones. In addition, it is essential to calm the spren with something it knows and loves. A good fire for a flamespren, for example, is a must.

Chapter 2: Severed Cords

Next, let the spren inspect your trap. The gemstone must not be fully infused, but also cannot be fully dun. Experiments have concluded that seventy percent of maximum Stormlight capacity works best.

If you have done your work correctly, the spren will become fascinated by its soon-to-be prison. It will dance around the stone, peek at it, float around it.

Chapter 3: The Fourth Bridge

The final step in capturing spren is the most tricky, as you must remove the Stormlight from the gemstone. The specific techniques employed by each artifabrian guild are closely guarded secrets, entrusted only to their most senior members.

The easiest method would be to use a larkin—a type of cremling that feasts on Stormlight. That would be wonderful and convenient if the creatures weren’t now almost entirely extinct. The wars in Aimia were in part over these seemingly innocent little creatures.

Chapter 4: Architects of the Future

To draw Stormlight out of a gemstone, I use the Arnist Method. Several large empty gemstones are brought close to the infused one while the spren is inspecting it. Stormlight is slowly absorbed from a small gemstone by a very large gemstone of the same type—and several together can draw the Light out quickly. The method’s limitation is, of course, the fact that you need not merely acquire one gemstone for your fabrial, but several larger ones to withdraw the Stormlight.

Other methods must exist, as proven by the extremely large gemstone fabrials created by the Vriztl Guild out of Thaylenah. If Her Majesty would please repeat my request to the guild, this secret is of vital importance to the war effort.

Chapter 5: Broken Spears

If the Stormlight in a gemstone is withdrawn quickly enough, a nearby spren can be sucked into the gemstone. This is caused by a similar effect to a pressure differential, created by the sudden withdrawal of Stormlight, though the science of the two phenomena are not identical.

You will be left with a captured spren, to be manipulated as you see fit.

Chapter 6: A Loose Thread

With a captured spren, you may begin designing a proper fabrial. It is a closely guarded secret of artifabrians that spren, when trapped, respond to different types of metals in different ways. A wire housing for the fabrial, called a “cage,” is essential to controlling the device.

Chapter 7: The Rarest Vintage

The two metals of primary significance are zinc and brass, which allow you to control expression strength. Zinc wires touching the gemstone will cause the spren inside to more strongly manifest, while brass will cause the spren to withdraw and its power to dim.

Remember that a gemstone must be properly infused following the spren’s capture. Drilled holes in the gemstone are ideal for proper use of the cage wires, so long as you don’t crack the structure and risk releasing the spren.

Chapter 8: Surrender

A bronze cage can create a warning fabrial, alerting one to objects or entities nearby. Heliodors are being used for this currently, and there is some good reasoning for this—but other gemstones should be viable.

Chapter 9: Contradictions

A pewter cage will cause the spren of your fabrial to express its attribute in force—a flamespren, for example, will create heat. We call these augmenters. They tend to use Stormlight more quickly than other fabrials.

Chapter 10: A Single Casualty

A tin cage will cause the fabrial to diminish nearby attributes. A painrial, for example, can numb pain. Note that advanced designs of cages can use both steel and iron as well, changing the fabrial’s polarity depending on which metals are pushed to touch the gemstone.

Chapter 11: Passion and Courage

An iron cage will create an attractor—a fabrial that draws specific elements to itself. A properly created smoke fabrial, for example, can gather the smoke of a fire and hold it close.

New discoveries lead us to believe it is possible to create a repeller fabrial, but we don’t yet know the metal to use to achieve this feat.

Chapter 12: A Way to Help

One of my pleas is for artifabrians to stop shrouding fabrial techniques with so much mystery. Many decoy metals are used in cages, and wires are often plated to look like a different metal, with the express intent of confusing those who might try to learn the process through personal study. This might enrich the artifabrian, but it impoverishes us all.

Chapter 13: Another Hunt

Advanced fabrials are created using several different techniques. Conjoined fabrials require a careful division of the gemstone—and the spren inside. If performed correctly, the two halves will continue to behave as a single gemstone.

Note that rubies and flamespren are traditional for this purpose— as they have proven the easiest to divide, and the quickest in response times. Other types of spren do not split as evenly, as easily, or at all.

Chapter 14: Voice

All gemstones leak Stormlight at a slow rate—but so long as the crystal structure remains mostly intact, the spren cannot escape. Managing this leakage is important, as many fabrials also lose Stormlight through operation. All of this is tied up in the intricacies of the art. As is understanding one last vital kind of spren: logicspren.

Chapter 15: The Light and the Music

Logicspren react curiously to imprisonment. Unlike other spren, they do not manifest some attribute—you cannot use them to make heat, or to warn of nearby danger, or conjoin gemstones. For years, artifabrians considered them useless—indeed, experimenting with them was uncommon, since logicspren are rare and difficult to capture.

A breakthrough has come in discovering that logicspren will vary the light they radiate based on certain stimuli. For example, if you make the Light leak from the gemstone at a controlled rate, the spren will alternate dimming and brightening in a regular pattern. This has led to fabrial clocks. When the gemstone is tapped with certain metals, the light will also change states from bright to dim. This is leading to some very interesting and complex mechanisms.

Chapter 16: An Unknown Song

My final point of the evening is a discussion of Fused weapons. The Fused use a variety of fabrial devices to fight Radiants. It is obvious from how quickly they’ve fabricated and employed these countermeasures that they have used these in the past.

Chapter 17: A Proposal

The simplest Fused weapon against us isn’t truly a fabrial, but instead a metal that is extremely light and can withstand the blows of a Shardblade. This metal resists being Soulcast as well; it interferes with a great number of Radiant powers.

Fortunately, the Fused seem unable to create it in great quantities—for they equip only themselves, and not their average soldiers, with these wonders.

Chapter 18: Surgeon

The Fused have a second metal I find fascinating—a metal that conducts Stormlight. The implications for this in the creation of fabrials are astounding. The Fused use this metal in conjunction with a rudimentary fabrial—a simple gemstone, but without a spren trapped inside.

How they pull Stormlight out of a Radiant and into this sphere remains baffling. My scholars think they must be employing an Investiture differential. If a gemstone is full of Stormlight—or, I assume, Voidlight—and that Light is removed quickly, it creates a pressure differential (or a kind of vacuum) in the gemstone. This remains merely a theory.

Chapter 19: Garnets

The world becomes an increasingly dangerous place, and so I come to the crux of my argument. We cannot afford to keep secrets from one another any longer. The Thaylen artifabrians have private techniques relating to how they remove Stormlight from gems and create fabrials around extremely large stones.

I beg the coalition and the good people of Thaylenah to acknowledge our collective need. I have taken the first step by opening my research to all scholars. I pray you will see the wisdom in doing the same.

Interludes

Interlude I-1: Sylphrena

Interlude I-2: Sja-anat

Interlude I-3: Into the Fire

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Part 2: Our Calling

Chapter 20: The Unseen Court

Dear Wanderer,

I did receive your latest communication. Please forgive formality on my part, as we have not met in person. I feel new to this role, despite my years holding it. You will admit to my relative youth, I think.

Chapter 21: The Seething Knot

I have been fascinated to discover how much you’ve accomplished on Scadrial without me noticing your presence. How is it that you hide from Shards so well?

Chapter 22: No Use Talking

I have reached out to the others as you requested, and have received a variety of responses.

Chapter 23: Binding Wounds

Much as you indicate, there is a division among the other Shards I would not have anticipated.

Chapter 24: Full of Awe

Endowment at least responded to my overtures, though I have not been able to locate Invention again following our initial contact.

Chapter 25: Devotary of Mercy

Whimsy was not terribly useful, and Mercy worries me. I do think that Valor is reasonable, and suggest you approach her again. It has been too long, in her estimation, since your last conversation.

Chapter 26: A Little Espionage

The deaths of both Devotion and Dominion trouble me greatly, as I had not realized this immense power we held was something that could be broken in such a way. On my world, the power always gathered and sought a new Vessel.

Chapter 27: Banners

That said, the most worrying thing I discovered in this was the wound upon the Spiritual Realm where Ambition, Mercy, and Odium clashed—and Ambition was destroyed. The effects on the planet Threnody have been … disturbing.

Chapter 28: Heresies

Other Shards I cannot identify, and are hidden to me. I fear that their influence encroaches upon my world, yet I am locked into a strange inability because of the opposed powers I hold.

Chapter 29: A Cage Without Bars

I have begun searching for a pathway out of this conundrum by seeking the ideal person to act on my behalf. Someone who embodies both Preservation and Ruin. A … sword, you might say, who can both protect and kill.

Chapter 30: The Betrayal

But this does not get to the core of your letter. I have encouraged those who would speak to me to heed your warnings, but all seem content to ignore Odium for the time being. In their opinion, he is no threat as long as he remains confined in the Rosharan system.

Chapter 31: Daughter of Traitors

I do not share their attitude. If you can, as you suppose, maintain Odium’s prison for now, it would give us necessary time to plan. This is a threat beyond the capacity of one Shard to face.

Chapter 32: Of Three Minds

Unfortunately, as proven by my own situation, the combination of Shards is not always a path to greater power.

Chapter 33: Understanding

We must assume that Odium has realized this, and is seeking a singular, terrible goal: the destruction—and somehow Splintering or otherwise making impotent—of all Shards other than him.

Chapter 34: A Flame Never Extinguished

To combine powers would change and distort who Odium is. So instead of absorbing others, he destroys them. Since we are all essentially infinite, he needs no more power. Destroying and Splintering the other Shards would leave Odium as the sole god, unchanged and uncorrupted by other influences.

Chapter 35: The Strength of a Soldier

You say that the power itself must be treated as separate in our minds from the Vessel who controls it.

Chapter 36: The Price of Honor

I find this difficult to do on an intrinsic level, as although I am neither Ruin nor Preservation, they make up me.

Chapter 37: Silence From the Dead

Regardless, I will try to do as you suggest. However, you seem more afraid of the Vessel. I warn you that this is a flaw in your understanding.

Chapter 38: Rhythem of the Terrors

You have not felt what I have. You have not known what I have. You rejected that chance—and wisely, I think.

Chapter 39: Invasion

However, though you think not as a mortal, you are their kin. The power of Odium’s Shard is more dangerous than the mind behind it. Particularly since any Investiture seems to gain a will of its own when not controlled.

Chapter 40: In for All

My instincts say that the power of Odium is not being controlled well. The Vessel will be adapted to the power’s will. And after this long, if Odium is still seeking to destroy, then it is because of the power.

Chapter 41: The Most Dangerous

Of course, I admit this is a small quibble. A difference of semantics more than anything.

Chapter 42: Armor and Teeth

In truth, it would be a combination of a Vessel’s craftiness and the power’s Intent that we should fear most.

Chapter 43: Men and Monsters

Regardless, please make yourself known to me when you travel my lands. It is distressing that you think you need to move in the shadows.

Interludes

Interlude I-4: Vyre

Interlude I-5: Lift

Interlude I-6: A Boon and a Curse

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Part 3: Songs of Home

Chapter 44: Tinder Waiting for the Spark

I find this format most comfortable, as it is how I’ve collaborated in the past. I have never done it in this way, and with this kind of partner.

Chapter 45: A Bold Heart, a Keen and Crafty Mind

Chapter 46: The Weight of the Tower

I approach this project with an equal mixture of trepidation and hope. And I know not which should rule.

Chapter 47: A Cage Forged of Spirits

I approach this project with inspiration renewed; the answers are all that should matter.

Chapter 48: Scent of Death, Scent of Life

Chapter 49: Soul of Discovery

In my fevered state, I worry I’m unable to focus on what is important.

Chapter 50: Queen

When in such a state, detachment is enviable. I have learned that my greatest discoveries come when I abandon lesser connections.

Chapter 51: To Sing Hopeless Songs

This song—this tone, this rhythm—sounds so familiar, in ways I cannot explain or express.

Chapter 52: A Path Toward Saving

Chapter 53: Compassion

I am led to wonder, from experiences such as this, if we have been wrong. We call humans alien to Roshar, yet they have lived here for thousands of years now. Perhaps it is time to acknowledge there are no aliens or interlopers. Only cousins.

Chapter 54: The Future Become Dust

It would have been so easy if Voidlight and Stormlight destroyed one another. Such a simple answer.

Chapter 55: Kinshiop with the Open Sky

Chapter 56: Nodes

Chapter 57: Child of Odium

Chapter 58: Spanreeds

Chapter 59: The Lattice of a Growing Crystal

Chapter 60: Essai

Chapter 61: Oil and Water

Chapter 62: Keeper of Forms

Chapter 63: Practice

Chapter 64: Personal Reminder

Chapter 65: Hypothesis

Chapter 66: Bearer of Agonies

Chapter 67: Song of Stones

Chapter 68: One Family

Chapter 69: Pure Tones of Roshar

Chapter 70: Well

Chapter 71: Rider of Storms

Chapter 72: Outmatched

Interludes

Interlude I-7: Szeth

Interlude I-8: Chiri-Chiri

Interlude I-9: The Sword

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Part 4: A Knowledge

Chapter 73: Which Master to Follow

Chapter 74: A Symbol

Chapter 75: The Middle Step

Chapter 76: Harmony

Chapter 77: The Proper Legality

Chapter 78: The High Judge

Chapter 79: Open Wound

Chapter 80: The Dog and the Dragon

Chapter 81: Trapped

Chapter 82: Knife

Chapter 83: The Games of Men and Singers

Chapter 84: Scholar

Chapter 85: Dabbid

Chapter 86: The Song of Mornings

Chapter 87: Trial by Witness

Chapter 88: Falling Star

Chapter 89: Voice of Lights

Chapter 90: One Chance

Chapter 91: Worth Saving

Chapter 92: A Gift

Chapter 93: Strong Enough

Chapter 94: Sacrifice

Chapter 95: What She Truly Was

Chapter 96: A Thousand Lies

Chapter 97: Freedom

Interludes

Interlude I-10: Hesina

Interlude I-11: Adin

Interlude I-12: Vulnerable

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Part 4: Knowing a Home of Songs, Called Our Burden

Chapter 98: An Unwholesome Shade

Chapter 99: Not Bound

Chapter 100: Watchers at the Rim

Chapter 101: Undertext

Chapter 102: Highstorm Coming

Chapter 103: The Legend You Live

Chapter 104: Full of Hope

Chapter 105: Children of Passions

Chapter 106: A Hundred Discordant Rhythms

Chapter 107: Uniting

Chapter 108: Moments

Chapter 109: Emulsifier

Chapter 110: Reborn

Chapter 111: Unchained

Chapter 112: Terms

Chapter 113: Emotion

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Chapter 114: Broken Gods

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Chapter 115: Testament

Chapter 116: Mercy

Chapter 117: One Final Gift

Epilogue: Dirty Tricks