Oasis

A new dystopian/post-apocalyptic series from a New York Times bestselling author
My name is Theo, and I'm a resident of Oasis, the last habitable area on Earth. It's meant to be a paradise, a place where we are all content. Vulgarity, violence, insanity, and other ills are but a distant memory, and even death no longer plagues us.
I was once content too, but now I'm different. Now I hear a voice in my head, and she tells me things no imaginary friend should know. Her name is Phoe, and she is my delusion.
Or is she?