On the surface she's a cute and feisty blonde, a slender pocket rocket fitness coach. But Cassiopeia Lake has a secret; she's really a force of nature - an elemental. Water sprite, Cassie, has lived undisturbed in her native Scottish loch for eons. Now, one encounter too many with modern plumbing has driven her to live in human guise along with her selkie boyfriend, Euan. It's all going fine - until a nerdy magician captures Cassie to be an unwilling component in his crazy dangerous experiment. Escape is only Cassie's first challenge. She's smitten by her fellow prisoner, the scorching hot fire elemental, Gloria. But how do you love someone you can never touch? And what do you do when your boyfriend starts to hero-worship your persecutor? Not to mention that tricky situation of being the prize in a power contest between two rival covens of witches. So when Gloria's temper erupts and she sets out to murder the magician, can Cassie keep her loved ones safe from the cross-fire, or will she be sucked into the maelstrom of deadly desires and sink without trace?