The Stonewall Pack Alpha, Book #4. Hidden in an otherwise modern world, where packs operate just under the surface of everyday life, werewolves mate in threesomes dictated by a mating lust that tells them without doubt who their fated mates are. Sheriff Caleb Couteux comes to Marysburg to investigate Ted Seabolt, former Alpha of Stonewall pack, but gets more than he bargained for when he discovers his mates. Best friends for years, Fiona and Grady fought the love between them until the mating lust draws them together ... with Caleb. But Grady sees Caleb as an interloper, and Caleb feels left out of their twosome. Can they solve their relationship problems in time to face the trouble to come?