`Is this his best yet?...Full of sinister menace and propulsive pace with twisty plotting' Lee Child WHAT REALLY LIES WITHIN? High on a Cornish cliff sits a vast uninhabited mansion. Uninhabited except for Blake, a young woman of mysterious background, currently acting as housesitter. The house has a panic room. Cunningly concealed, steel lined, impregnable - and apparently closed from within. Even Blake doesn't know it's there. She's too busy being on the run from life, from a story she thinks she's escaped. But her remote existence is going to be threatened when people come looking for the house's owner, rogue pharma entrepreneur, Jack Harkness. Soon people with questionable motives will be asking Blake the sort of questions she can't - or won't - want to answer. WILL THE PANIC ROOM EVER GIVE UP ITS SECRETS?