Digger is the latest from Robert D. Calkins in the Sierra the Search Dog series of books for all ages.Bryce Finn started out using his Golden Retriever Sierra's nose to win at childhood games of hide-and-seek. Now 17 and Washington state's youngest SAR dog handler, Bryce and K9 Sierra are hip deep in a series of murders that some political leaders deny is happening at all. Bryce and Sierra continue to be one step behind whoever is dumping bodies, and one step ahead of detectives from their local sheriff's office. As the body count grows Bryce risks his career, and eventually his life, to unravel the case of the Chimera Killer.Along the way Bryce meets and nearly loses his first love, and learns the manly art of saying "yes, dear" at all the right times.