After being rescued from the slavers, Illy had been living with the other harpies in their village, but she was troubled because her feathers were falling out and she couldn’t fly anymore. Illy only agreed to be examined by Glenn if Tisalia was present. He thought that was a little strange but agreed to it. Glenn tells her the reason that she can’t fly right now is that she’s molting, but Illy doesn’t agree with his diagnosis and runs off. Illy is convinced that she’s sick and calls Glenn a quack doctor. As Glenn observes her behavior, he notices a change occurring in her.
You always grow new feathers 
when the seasons change, right?
Zur neuen Jahreszeit kriegst du neue Federn.
Te salen plumas nuevas
al cambiar las estaciones, ¿no?
Te salen plumas nuevas
al cambiar las estaciones, ¿no?
Votre plumage se renouvelle
selon les saisons, non ?
Ti crescono piume nuove 
a ogni cambio di stagione, no?
Você troca de penas conforme
as estações do ano, certo?
Вы же несколько раз в год меняете перья?