Reverie
(Book)

Kane Montgomery was found half-dead in the river. He has no memory of what happened, and why his life seems so different now. The entire world feels off, reality itself seems different. Three almost-strangers claim to be his friends and the only people who can truly tell him what's going on. As unimaginable worlds materialize out of nowhere-- the gym warps into a subterranean temple, a historical home nearby blooms into a Victorian romance rife with scandal and sorcery-- Kane realizes that nothing in his life is an accident. A sinister force threatens to alter reality for good, and Kane and his friends must stop it before it unravels everything they know. -- adapted from jacket