The New York Times No.1 bestselling YA crime thriller that everyone is talking about!
THE WINNER OF THE BRITISH BOOK AWARDS' CHILDREN'S BOOK OF THE YEAR 2020
SHORTLISTED FOR THE WATERSTONES CHILDREN'S BOOK PRIZE 2020
'A fiendishly-plotted mystery that kept me guessing until the very end.' - Laura Purcell, bestselling author of The Silent Companions