THIS YEAR'S MOST GRIPPING THRILLER AND SUNDAY TIMES CRIME BOOK OF THE MONTH'A high-altitude, high-stakes thriller. I loved it' MATT HAIG'Had me on the edge of my seat. A must read for 2022' SARAH PEARSE'Suffocatingly tense, highly original and exhilarating' DAILY EXPRESS'Tense, chilling and terrifying' CLAIRE DOUGLAS'Chilling, vivid and entirely unique' ABIGAIL DEANSIX STRANGERS. ONE KILLER. AND NO ESCAPE . . .________Near the top of one of the world's tallest mountains, journalist Cecily Wong ...