"Following their mission in the Soviet Union, Billy, Kaz, and Big Mike are sent to southern France for what should be a simple assignment: to serve as security for Royal Navy Commander Gordon Stewart, head of the Special Operations Executive's Section F in Algiers. Stewart's mission is to work with Resistance leaders in liberated areas to gather information that will help track down Vichy officials and other traitors who escaped with the retreating...

"Lieutenant Billy Boyle could have used a rest after his last case, but when his girlfriend, Diana Seaton, a British spy, goes missing in the Vatican, where she was working undercover, he insists on being assigned to a murder investigation there so he can try to help her. An American monsignor is found murdered at the foot of Death's Door, one of the five entrances to Saint Peter's Basilica. Wild Bill Donovan, head of the OSS, wants the killing investigated....

In his time investigating crimes for both the Boston cops and General Ike's European forces, Lieutenant Billy Boyle hasn't encountered a serial killer. But now it looks like he may--a serial killer with a particularly frightening agenda.

"It's September 1944, and the US is poised to launch Operation Frantic, a shuttle bombing mission to be conducted by American aircraft based in Great Britain, southern Italy, and three Soviet airfields in the Ukraine. Tensions are already high between the American and Russian allies when two intelligence agents--one Soviet, one American--are found dead at Poltava, one of the Ukrainian bases. Billy is brought in to investigate, and this time he's paired,...

"A murder in wartime Switzerland reveals Swiss complicity with the Nazis and profiteering during World War II Billy and Kaz are sent to neutral Switzerland to investigate the murder of a Swiss banking official with ties to the Office of Strategic Services (OSS). The US and Swiss governments are about to embark on diplomatic discussions regarding the Safehaven Protocols, which are aimed at limiting the amount of war materials exported by Switzerland...

"Billy Boyle, US Army detective and ex-Boston cop, faces his toughest investigation yet: infiltrating enemy lines in France as the Allies invade Normandy. It's late May 1944. Captain Billy Boyle is court-martialed on spurious charges of black market dealings. Stripped of his officer's rank, reduced to private, and sentenced to three months' hard labor, Boyle is given an opportunity: he can avoid his punishment if he goes behind enemy lines to rescue...

August, 1944: US Army Captain Billy Boyle is assigned to track down a French traitor, code named Atlantik, who is delivering classified Allied plans to German leaders in occupied Paris. The Resistance is also hot on his trail, and out for blood, after Atlantik's previous betrayals led to the death of many of their members. But the plans Atlantik carries were leaked on purpose, a ruse devised by a colonel to obscure the Allied army's real intentions...

"Just days after the Liberation of Paris, Billy and Kaz are brought to Saint Albans Convalescent Hospital in the English countryside. Kaz has been diagnosed with a heart condition, and Billy is dealing with emotional exhaustion and his recent methamphetamine abuse. Meanwhile, Billy's love, Diana Seaton, has been taken to Ravensbruck, the Nazi concentration camp for women, and Kaz's sister, Angelika, who he recently learned was alive and working with...