Primed and ready for another big adventure, Misty heads to Las Vegas to train Salvatore, a high-powered casino owner. Much to her chagrin, Misty's friends talk her in to taking on an apprentice, Monique, who wants to learn the ins and outs of being a Black Widow Trainer. Misty's rival both in physical ability and allure, Monique is trouble from the get-go, vexing Misty every step of the way. And when Salvatore's sadistic side rears its ugly head, Misty wonders what she has gotten herself into. If it weren't for her temporary bodyguard, Thor, her new romantic acquaintance, Gary, and the helpful hands of her masseur, Esteban, Misty wouldn't know which way to turn. In a move unprecedented in Misty's career, she breaks her contract with Salvatore, and he vows to hunt her down. She and Monique hide out in the beautiful Virgin Islands, where they reunite with Captain Kev and Miniature Mike, two memorable clients from Misty's Alaska adventure. Suddenly they find themselves embroiled in a situation even more harrowing than the one they escaped. Part romance, part sexual adventure, and part dark thriller, Hanging by a Thread is a sizzling conclusion to the Black Widow Trainer Series.