Dink, Josh, and Ruth Rose investigate a mysterious man in black who Josh believes is a vampire.

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.

"Dink, Josh, and, Ruth Rose solve a Valentine's Day mystery"--

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 doctored photographs of the President of the United States appear after an innocent Halloween party, his stepdaughter KC and her friend Marshall have to find the culprit in order to save the President's chances for re-election.

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.

After finding an unusual present--a lost puppy--on Christmas Eve, best friends Bradley, Brian, Nate, and Lucy scramble to find its owner before morning.

The white wolf: While visiting their friend Wallis and her adopted daughter on Mount Desert Island, Maine, Josh, Dink, and Ruth Rose investigate why three white wolf cubs were stolen, and by whom. The x'ed-out x-ray: 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. The yellow yacht: Dink, Josh, and Ruth Rose help catch the thieves who have stolen gold...

The absent author: Dink Duncan and his two friends investigate the apparent kidnapping of famous mystery author Wallis Wallace. The bald bandit: 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. The canary caper: Dink and his friends investigate why pets, like Mrs. Davis's canary, Mozart, are mysteriously disappearing all over town.