Death's door : a Billy Boyle World War II mystery (Billy Boyle World War II mystery bk. 7.)
Series
Summary
"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 fo... Full description
Series: Billy Boyle World War II mysteries
Billy Boyle: a World War Two mystery (Volume 1.)
The first wave: a Billy Boyle World War II mystery (Volume 2.)
Blood alone: a Billy Boyle World War II mystery (Volume 3.)
Evil for evil (Volume 4.)
Rag and bone: a Billy Boyle World War II mystery (Volume 5.)
A mortal terror: a Billy Boyle World War II mystery (Volume 6.)
Death's door (Volume 7.)
A blind goddess (Volume 8.)
The rest is silence (Volume 9.)
The white ghost (Volume 10.)
Blue Madonna (Volume 11.)
The devouring (Volume 12.)
Solemn graves (Volume 13.)
When hell struck twelve (Volume 14.)
The red horse: a Billy Boyle World War II mystery (Volume 15.)
Road of bones: a Billy Boyle World War II mystery (Volume 16.)
From the shadows: a Billy Boyle World War II mystery (Volume 17.)
Proud sorrows: a Billy Boyle World War II mystery (Volume 18.)