I think we have established that I have an obsession, and I am crazy, and I think about things that people haven't thought about just because I am bored and a little bit delusional. Enough about me. Listen to this theory.

Lady Gisela's secret ability.

In Legacy, Alvar hints toward the fact that polyglots usually manifest twice. Well, Lady Gisela is a Polyglot, so she might have manifested twice and we didn't know. This would explain how she just needed to trigger Keefe's ability if the genes have been passed on. As I thought about this, I realized there aren't many members of the Neverseen that are girls, and we can rule out most of them. Glimmer and Lady Gisela have been in the same room, so they couldn't have been the same person. Umber was killed. So we have to think. We never found out if the guster that belongs to the Neverseen is a man or a woman. It doesn't talk about them much, but that could be because they aren't around a lot. Guess who else isn't around a lot. LADY GISELA.