Katherine Sharon Butler

There's a serial killer on the loose, working his way through the alphabet and the whole country is in a state of panic. A is for Mrs. Ascher in Andover, B is for Betty Barnard in Bexhill, C is for Sir Carmichael Clarkein Churston. With each murder, the killer is gettingmore confident - but leaving a trail of deliberate clues to taunt the proud Hercule Poirot might just prove to be the first, and fatal, mistake.

Internationally best-selling author Sophie Hannah and the world's favorite detective, Hercule Poirot, return in this follow-up to The Monogram Murders, the national best seller hailed by the Washington Post as "literary magic".

Nora Kelly, a young curator at the Santa Fe Institute of Archaeology, is approached by historian Clive Benton with a once-in-a-lifetime proposal: to lead a team in search of the so-called "Lost Camp" of the tragic Donner Party. Benton tells Kelly he has stumbled upon an amazing find: the long-sought diary of one of the victims, which has an enigmatic description of the Lost Camp. Nora agrees to lead an expedition to locate and excavate it-to reveal its long-buried secrets. Once in the mountains, they learn that discovering the camp is only the first step in a mounting journey of fear.

Captain Dominika Egorova of the Russian Intelligence Service (SVR) has returned from the West to Moscow and the Center, the headquarters of her service. She finds things worse than when she left. She despises the men she must serve, the oligarchs and crooks and thugs of Putin's Russia. What no one knows is that Dominika is working for the CIA as Washington's most sensitive penetration of SVR and the Kremlin.