'Readers will burn through the pages as they traverse gorgeous, fully realized worlds replete with their own varied dramas. . . . Incredibly immersive and utterly unique.' --Kirkus Reviews (starred review) Set in a universe where time is key to power and privilege, this dazzlingly inventive, genre-defying fantasy romance is the first in a duology by best-selling author Caroline O'Donoghue. Margo is a troubled schoolgirl. After the death of her father, she's on her way to a new boarding school in a new city. Moon is a salesman. He makes his living traveling through a series of interconnected worlds on a network of barely used train lines. They never should have met. But when Margo suddenly appears one day on Moon's train, their fates become inextricably linked. If Margo wants to survive, she has to pass as a traveling salesman, too--except it's not that easy. Move north on the train line and time speeds up, a day passing in mere hours. Move south and time slows down--a day can last