Legend of Iseris

In a world full of gods hiding among humans, Ty is by far the most obvious one. His beautiful white wings the size of his body make it obvious he's special, but Ty doesn't think so. There's nothing special about him. No powers, no magical weapons, not even any cool stories to tell.
And then there's Ty's best friend, Iseris. Iseris is a goddess that trusts Ty to keep her secret. She seems like any normal girl, looking rather average and no longer having any cool stories to tell. Everyone already knows her tales. She has her own book in the God's Library, which has been read so many times that the cover is falling off.
Ty had always been jealous of Iseris and all her amazing god-like qualities. He's starting to give up hope that anything cool will happen to him... and then Iseris goes missing. Ty has read Iseris's tale many many times and knows that she was destined to disappear, but the last few pages containing the reason why were ripped out and burned thousands of years ago. Now Ty has to go back in time and figure out why Iseris has disappeared before it's too late.