"Hank the Cowdog: The Case of the Raging Rottweiler" by John Erickson (Book 36)

There's a raging rottweiler named Bruiser loose on the ranch, and it's up to Hank to teach this visiting pooch some manners. It's rumored that Bruiser is all talk and no action. However, when he attacks a defenseless fawn, Hank's not so sure. Does Hank have what it takes to put this crazy canine in his place? Or are Hank's dog days numbered?