The woman in cabin 10 : a novel / Ruth Ware.

Enhanced descriptions from Syndetics:

From New York Times bestselling author, Ruth Ware comes The Woman in Cabin 10 , a suspenseful and haunting novel--set at sea.

In this tightly wound, enthralling story reminiscent of Agatha Christie's works, Lo Blacklock, a journalist who writes for a travel magazine, has just been given the assignment of a lifetime: a week on a luxury cruise with only a handful of cabins. The sky is clear, the waters calm, and the veneered, select guests jovial as the exclusive cruise ship, the Aurora , begins her voyage in the picturesque North Sea.

At first, Lo's stay is nothing but pleasant, but as the week wears on, frigid winds whip the desk, gray skies fall, and Lo witnesses what she can only describe as a dark and terrifying nightmare: a woman being thrown overboard. The problem? All passengers remain accounted for--and so, the ship sails on as if nothing has happened, despite Lo's desperate attempts to convey that something (or someone) has gone terribly, terribly wrong...

With surprising twists, spine-tingling turns, and a setting that proves as uncomfortably claustrophobic as it is eerily beautiful, Ruth Ware offers up another taut and intense read in The Woman in Cabin 10 --one that will leave even the most sure-footed reader restlessly uneasy long after the last page is turned.