Sometimes a unique talent is inherited - and such is the case for Trouble, son of Familiar, the black cat detective. Trouble's rather indolent life in the sleepy town of Wetumpka, Alabama is upended when a serial killer arrives on the scene. Trouble begins to apply the skills he learned from his dad and his hero, Sherlock Holmes. When local bookseller Tammy Lynn is attacked at the site of an impact crater, Trouble realizes he must protect his human and solve the mystery of the Silk Stocking Killer.

Librarian Sylvia Ashe knows nothing about her past, having grown up without a father and a mother who refused to discuss him. When she stumbles upon a diary that suggests she's descended from magicians, she's skeptical. After all, magicians are special, and she's just an ordinary woman who loves books. She seeks answers from a member of the most prominent family of magicians, but she quickly learns that finding the truth won't be easy, especially when he turns out to be as artless as her, and more compelling and dangerous than books.

Scarlet Sanderson sees dead people. Literally. As a reluctant conduit between the land of the living and the dearly departed, she is doing her best to have a life of her own.

There's a stranger living in Kimber Hannon's house. He tells the police that he has every right to be there, and he has the paperwork to prove it. But Kimber definitely didn't invite this man to move in. He tells her that he knows something about her, and he wants everyone else to know it too. "I was there. I saw what you did." These words reveal a connection to Kimber's distant past, and dark secrets she'd long ago left buried. This trespasser isn't after anything as simple as her money or her charming Craftsman bungalow.

Sarah Grayson is the happy proprietor of Second Chance, a charming shop in the oceanfront town of North Harbor, Maine. At the shop she sells used items that she has lovingly refurbished and repurposed. But her favorite pet project so far has been adopting a stray cat she names Elvis. The big black cat with a scar across his nose turned up at a local bar when the band was playing the King of Rock and Roll's music and hopped in Sarah's truck.