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

Dink, Josh, and Ruth Rose are enjoying Halloween fun in Sleepy Hollow, New York, but when unplanned spooky things start happening, they investigate whether a real headless horseman might be to blame.

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.

Thar she blows! Dink, Josh, and Ruth Rose are on an Alaskan whale watching adventure. On their first day, they see a mother orca and her calf. But the next day, the baby orca is missing! The calf needs its mother’s milk. Can the kids solve this whale of a mystery?
 
The alphabet is over, but the mysteries continue in this seventh A to Z Mysteries Super Edition, featuring a 26-letter secret message hidden in the illustrations.

Celebrate 20 years of A to Z Mysteries! No foolin’!
 
It’s the first of April in Green Lawn! 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 alphabet may be over, but...

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"-- Provided by publisher