The Sunday Times bestseller A CHILLING WINTER THRILLER FROM THE MILLION-COPY BESTSELLING AUTHOR THE PERFECT DAY FOR A HIKE Seeking the escape of a lifetime, four friends hike out into the beautiful Norwegian wild – nothing between them and the mountain peak but forest, sea and sharp blue sky. THE PERFECT PLACE TO DISAPPEAR But there’s a darker side to the wilderness. A woman went missing here one year ago. Now the friends are hiking into the heart of the mystery. And waiting on the trail is someone who’d do anything to keep their secrets buried – and to stop the group walking away alive . . .