The deadly dungeon: While visiting Wallis's castle, Dink and his friends investigate strange noises that lead them to a dangerous secret. The empty envelope: Dink and his friends unearth the mysterious truth behind the envelopes incorrectly delivered to his house. The falcon's feathers: Josh and his two friends look for the person who stole a peregrine falcon from its nest. The goose's gold: When Ruth Rose and her friends, vacationing in Florida,...

The orange outlaw: While visiting Dink's uncle in New York City, Dink, Josh, and Ruth Rose help uncover who is responsible for stealing a very valuable painting. The panda puzzle: Dink, Josh, and Ruth Rose investigate the kidnapping of the new baby panda at the petting zoo. The quicksand question: When someone steals the money the town has been collecting to help the ducks, Josh and his friends try to find the thief. The runaway racehorse: Dink,...

The Kidnapped King: Someone has kidnapped the king and queen of Socotra. The Lucky Lottery: The lottery ticket that Lucky O'Leary's grandfather sends him turns out to be a million-dollar winner! The Missing Mummy: It's Mummy Monday at the museum, and Dink, Josh, and Ruth Rose are excited about the new Egyptian exhibit. The Ninth Nugget: Dink, Josh, and Ruth Rose are spending a week at a dude ranch. Everything is normal in a cowboy kind of way, until...

Dink, Josh, and Ruth Rose help catch the thieves who have stolen gold from Sammi's parents, the king and queen of Costra.

Ruth Rose, Josh, and Dink attend a concert during which someone steals the star's diamond pendant, and they are soon on the trail of the thief.

When Dink, Josh, and Ruth Rose visit a dude ranch in Montana, they find themselves with another mystery to solve, this one involving the theft of money from the ranch's safe and of a large gold nugget that Josh had found.

Third-grader Dink and his detective friends hope to receive a big reward by finding the person whose video recorder picked up a picture of the local bank robber.

Dink, Josh, and Ruth Rose investigate the disappearance of a valuable racehorse that Dink's uncle and his friend, Forest Evans, have just bought and entered in a race at Saratoga.

Dink and his friends investigate why pets, like Mrs. Davis's canary, Mozart, are mysteriously disappearing all over town.

Dink, Josh, and Ruth Rose investigate the theft of a great deal of money from the belly of a nearly life-size Tyrannosaurus Rex model that their friend, Jud Wheat, is using to raise money for a dinosaur museum.