Another Life in Wonder

After a car accident, Finley wakes up in a place called Wonder. There she meets a kitten like girl, an old man with a top hat, and a broody Russian prince. And she finds herself falling, literally and figuratively. As time goes on and her stay in Wonder continues Finley starts to fade. Slipping further and further away. With her two realities merging into one, how could she know which one is real?