While learning detective skills at a sleep-away camp, Dink and his friends undercover a real mystery involving stolen paintings.

When Dink, Josh, and Ruth Rose visit Washington, D.C., just before Christmas, they are inadvertently caught up in a kidnapping plot that was intended for the president's dog, but also involves the president's stepdaughter and her friend Marshall.

Dink, Josh, and Ruth Rose are enjoying a visit to San Francisco when Holden, their college-age tour guide, is accused of abducting Miss Chinatown from the Chinese New Year parade and stealing her valuable crown.

"Dink, Josh, and Ruth Rose must solve a mystery when they go whale watching in Alaska"--

"Mr. Paskey, owner of the Book Nook, plays an April Fools' Day prank on Dink, Josh, and Ruth Rose. They hatch a plan to get back at him, but then the bookstore is robbed--no joke! Can the kids track down the crook? Or will this April Fools' be an April fail?"--

The star of their favorite television show is kidnapped at the Grand Canyon, and it is up to Dink, Josh, and Ruth Rose to find him.

"When Ruth Rose's grandmother is accused of stealing, it's up to Dink, Josh, and Ruth Rose to clear her name"--