Upper World

*SHORTLISTED FOR THE WATERSTONES CHILDREN''S BOOK PRIZE 2022*

''A superbly original debut'' - Guardian

''A time-twisting, mind-bending thrill ride . . . I loved it!'' - Holly Jackson, author of A Good Girl''s Guide to Murder

''Impossible to put down'' - The Independent

ONE GLIMPSE OF A TERRIFYING FUTURE.
ONE CHANCE TO CHANGE EVERYTHING.

After suffering a knock to the head, 15-year-old Esso experiences a...