Book #1 (ORIG 2012) 

Undercover on a slave ship of dark eroticism Decorah Security agents Emma Richards and werewolf Cole Marshall take on a dangerous undercover assignment, to rescue a young woman from sexual slavery on a cruise ship converted into a dark and dangerous pleasure palace. When they masquerade as lovers, the sexual attraction between Emma and Cole reaches flash point. But what will happen when Emma discovers her lover is a shape-shifter?