Ocean's Embrace By Regina Sage

Return to a world of shapeshifters, underwater adventures, and thrilling mysteries in the second book of the Underwater Series! Feline shifter and Captain of the Capitol Guard Mirandha has a new assignment: find and dismantle a suspected trafficking ring. She enlists the help of Zane, the soldier and friend for whom she's always carried a flame. They've been dancing around the potential sparks for years, but when they discover the evil lurking beneath the surface of Cetean society, their burgeoning romance is strained. Mirandha is forced to confront her past, and jeopardize her safety as well as her heart.