The Panda of Death (Gunn Zoo Series, 6)

California zookeeper Theodora Bentley is now happily married to Sheriff Joe Rejas. The Gunn Zoo is celebrating the arrival of Poonya, an adorable red panda, who forms a strong bond with Teddy. All appears fairytale blissful in the small Monterey Bay village of Gunn Landing until Teddy's mother-in-law, mystery writer Colleen Rejas, has discovered through DNA testing that Joe has sired a son he knew nothing about. Dylan Coyle, 18, arrives to meet his biological family... and then is arrested for murder.

By the end of the book, besides solving the crime, Teddy and Colleen have learned that the term "family" does not always mean blood kin. It often includes those who―although no blood relationship―are still held close in our hearts.