The Prisoner In The CastleBook - 2018
"Maggie Hope is being held prisoner on a remote Scottish island with other SOE agents who know too much for the enemy's comfort. All the spies on the island are trained to kill--and when they start dropping off one-by-one, Maggie needs to find the murderer... before she becomes the next victim."--
Publisher: New York :, Bantam Books,, 
Edition: First edition.
Characteristics: 306 pages ; 24 cm.