Whales and Tails is a cozy mystery series set on Madrona Island, a fictional island within the San Juan Islands off the coast of Washington State. As a fourth generation islander Caitlin Hart is struggling to make her way as the economy and culture of the island evolves toward a tourism based industry. Cait lives in a cabin on her aunt's oceanfront estate where she helps her aunt run Harthaven Cat Sanctuary. When she isn't working with the cats, she helps best friend Tara, operate the coffee bar/bookstore/cat lounge they own, named Coffee Cat Books. In the 7th book in the series, Cait finds a cat locked in the confessional at Saint Patrick's Catholic Church, which leads to the discovery of a body locked in the trunk of a car. Cody is dealing with a life changing decision of his own, and Finn has multiple crimes to deal with, so Cait enlists Tara's help to track down a killer.