Glintstone key received from the sorceress Sellen. Capable of breaking the seal that keeps Master Lusat confined. CaelidRegion. This key was said to have been found in the possession of a Sellian sorcerer.

Obtained during Sorceress Sellen's questline. After finding Comet Azur on the body of Primeval Sorcerer Azur, speak with Sellen to further her quest. She will have an additional dialogue option, 'I have a favor to ask' that will give the player the Sellian Sealbreaker.