Ten-year-old Bernie Dingledorf is recruited as a secret agent to fight Dr. Chuckles, who is forcing the smart people of the world to laugh uncontrollably so tha

In The Case of the Hiccupping Ears, people all over the world are forgetting how to eat, see, hear, smell, and even walk! What on earth is going on? The boys at

Only Secret Agent Dingledorf and his trusty dog, Splat, can find the answer. Only they can save the day while also learning the importance of obeying those in c

In Secret Agent Dingledorf's sixth top-secret case, everyone's pets are going crazy! Cats think they can sing opera. Dogs think they're country-western stars. E