Billy Boyle World War II mysteries

What’s a twenty-two-year-old Irish American cop who’s never been out of Massachusetts before doing at Beardsley Hall, an English country house, having lunch with King Haakon of Norway? Billy Boyle himself wonders. Back home in Southie, he’d barely made detective when war was declared. Unwilling to fight—and perhaps die—for England, he was relieved when his mother wangled a job for him on the staff of a general married...

Billy Boyle awakens in a field hospital in Sicily with amnesia. In his pocket is a yellow silk handkerchief embroidered with the initial L. Gradually he remembers: he has been sent ashore in advance of the troops with this token from Lucky Luciano to contact the head of the Sicilian Mafia. But he must also thwart a murderous band of counterfeiters of Army scrip led by Vito Genovese.

"Uncle Ike" (aka General Eisenhower) personally pins silver first lieutenant bars on Billy Boyle in Benn's stellar fifth WWII mystery (after 2009's Evil for Evil). In December 1943, Billy's leave with his British girlfriend in Italy is cut short. Orders send him to London to look into a Soviet officer's shooting murder, which may be retaliation for the execution of thousands of Polish officers in the Katyn Forest that's been blamed on the Germans...

"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....

"When an unidentified corpse washes ashore at Slapton Sands on England's southern coast, US Army Captain Billy Boyle and his partner, Lieutenant Piotr 'Kaz' Kazimierz, are assigned to investigate. The Devonshire beach is the home to Operation Tiger, the top-secret rehearsal for the approaching D-Day invasion of Normandy, and the area is restricted; no one seems to know where the corpse could have come from. Luckily, Billy and Kaz have a comfortable...

Billy Boyle, World War II US Army detective and ex-Boston cop, faces his toughest investigation yet: infiltrating enemy lines in France as the Allies invade Normandy.
May 1944: Captain Billy Boyle is convicted on spurious charges of black market dealings stripped of his officer’s rank, reduced to private, and sentenced to three months’ hard labor. But Billy is given an opportunity: if he takes on the incredibly dangerous mission...

"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...

"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...