Courage Bay bomb squad specialist Nora Keyes is commanded to join forces with arson investigator Sam Prophet to find the identity of a serial killer. Aside from the job-related challenges, however, working with Sam causes a slew of problems for Nora. He's arrogant, methodical, unwilling to let her rely on her intuition, infuriating and unbelievably attractive. The two must learn to work together as a team, both as professionals and, eventually, as lovers. The Trigger (4) by Jacqueline Diamond has engaging characters involved in a compelling, complex plot. The early chapters are heavy on backstory but, once the situation is set up, this excellent addition to the Code Red series flows smoothly.