Quote Originally Posted by Potato_Priest View Post
Does anyone else think that Zimmy and Mrs. Donlan might have a similar condition? They both share the pure black eyes (though Mrs. Donlan's have cleaner borders)
Zimmy's eyes become normal (with red irides) when it rains and she can let go. It has something to do with the ether. Mrs Donlan's eyes might also have something to do with the ether, but it seems that she can control magic (or tech) very well, which Zimmy really can't.

http://www.gunnerkrigg.com/?p=736