THE TRIP OF A LIFETIME. A PRIZE WORTH KILLING FOR.

We call it the Great Escape. The annual trip where my boss asks us expert travel guides to escort a group of privileged, uber-wealthy clientele on some far-flung expedition, a cut-throat contest for riches and glory.

The stakes have never been higher, nor the challenge harder: I must summit Mount Kilimanjaro before my rival guide to win the ultimate prize.

But this once-in-a-lifetime trip was never about winning to me. I'm here for answers, even if no one is ready to give them up. By the time we reach the top I will have the truth, if it kills me.

THE QUESTION IS, HOW FAR WILL THEY GO TO KEEP ME QUIET?

Praise for Karen Hamilton:

'Fabulously dark' Harriet Tyce
'An irresistible slice of escapism' TM Logan
'Full of twists and turns, it will keep you furiously turning the pages' Sarah Pearse
'Compelling, absorbing and highly entertaining.' Allie Reynolds
'Sizzles with tension, desire, and a forever-escalating sense of menace.' Jack Jordan
'Let this supremely enjoyable thriller whisk you up, up and away.' Sunday Mirror
'Grippingly unpredictable' Daily Express
'Be prepared to put your life on hold' Good Housekeeping
'Taut and tense from the first page to the closing paragraphs' Sun
'Fast-moving and fun' Observer