The Australian Shepherd Scheme; or The American Shepherd Scheme (The Mysteries of Just Another John Smith)

On a frosty morning in Little Rock, a young teen named Penny arrives at the steps of the Noble Detective Agency, seeking help to find her missing puppy, Pumpkin. What seems like a straightforward poster-and-social-media inquiry soon spirals into something more disturbing. When five more puppies from the same litter vanish without a trace—and the seller’s home is found ransacked but untouched—the case takes on eerie overtones. 
Teenage Detective John Smith must use all his deductive abilities to figure out what's going on and prevent panic from rising among Shepherd owners. Is this the work of a calculated animal thief, or is there something more involved? As winter’s chill deepens, every new clue brings John closer to a hidden threat whose next move could cause more distress to the hearts of dog lovers around Little Rock. In the race to reunite a grieving girl with her puppy and stop a mysterious terror, every second counts—and there is not a moment to lose.