Palimpsest

Blurb

Palimpsest is a novel by Catherynne M. Valente, published in March 2009. It follows four separate characters as they discover and explore a mysterious city accessed only at night.
In an interview with Terri Windling at Fantasy Book Critic, Valente describes the book: "Palimpsest is an urban fantasy about a city that lives on human skin, a viral city whose citizens consist of those who bear parts of the city on their flesh, and visit it in their dreams. The story follows four such people as they search for others like themselves and a way to enter the city permanently."