The Sibling is likely the third spren associated with the [[Order of Bondsmiths]], given its relationship with Stormfather and the Nightwatcher. It is possible that [[Melishi]] was bonded to the Sibling, given the single Bondsmith during the final days of the Knights Radiant tended to remain in Urithiru.{{epigraph ref|sa2|44}}{{epigraph ref|sa3|67}}