New York Times bestseller (Purification Ceremony) Mark Sullivan returns with his most compelling thriller in well over a decade.

"A chilling account of a killer who slipped through the hands of a daft justice system….Triple Cross chronicles one of the most vicious spies of our time." �

Have you ever wondered what really happens to Santa Claus letters? In Detroit and Sarasota some children's letters are diverted and reviewed by Nick Archer, a r

Former MI6 agent Kate Henderson returns in the series for “fans of cerebral spycraft in the vein of le Carré” from the international bestselling author (Pu