Ruh-roh! A haunted howling is coming from the ruins of Machu Picchu. It's up to Scooby-Doo and Mystery Inc. to solve the case. Readers join the gang as they explore the ancient ruins, learn about the Incas who called this city home, and use the clues to silence this mystery once and for all!

Ruh-roh! A haunted howling is coming from the ruins of Machu Picchu. It's up to Scooby-Doo and Mystery Inc. to solve the case. Readers join the gang as they explore the ancient ruins, learn about the Incas who called this city home, and use the clues to silence this mystery once and for all!

Zoinks! Three frightening phantoms are haunting the Pyramids of Giza! It's up to Scooby-Doo and Mystery Inc. to solve the case. Readers join the gang as they explore the pyramids, learn about Giza's ancient people, and use the clues to wrap up this mystery!

Jinkies! A spooky spirit is haunting the buried city of Pompeii. It's up to Scooby-Doo and Mystery Inc. to solve the case. Readers join the gang as they explore the ancient city, learn about the Romans who called Pompeii home, and discover what happened that fateful day that changed everything.

A ghostly face is appearing in the cliff dwellings of Mesa Verde. It has the visitors spooked! It's up to Scooby and Mystery Inc. to solve the case. Readers join the gang as they explore the cliff dwellings, learn about the ancient Anasazi who called these dwellings home, and use the clues to solve the mystery.

Scooby and the gang face their most challenging mystery ever: a plot to unleash the ghost dog Cerberus upon the world. As they race to stop this dogpocalypse, the gang discovers that Scooby has an epic destiny greater than anyone imagined.

It's the classic girl detectives like you've never seen them before! Daphne Blake and Velma Dinkley have a terrifying new mystery to solve — and this time, the culprit is far more frightening than any man in a mask... Daphne Blake and Velma Dinkley have a reputation to uphold. Despite their differences, the two teens worked together to solve the case of the Vanishing Girl. But there are still a lot of mysteries buried in the town of Crystal Cove. Including one the Vanishing Girl herself (aka Daphne's friend Marcy) asked them to look into-what deep dark secret is their old friend Shaggy Rogers trying to protect?The two teen detectives have barely started investigating that case when another mystery strikes. Hundreds of valuable gems begin washing ashore, and soon everyone is convinced it's a sign from the Lady Vampire of the Bay, a ghostly creature who's said to have haunted the town a hundred years earlier.Daphne and Velma are convinced there's a logical reason the jewels have appeared, and they're determined to find out what it is. But asking questions about Crystal Cove's legends can be dangerous. It seems like everyone in town has something to hide . . . especially the families who've profited off the town's mysterious past. Can the girls discover what's lurking behind all this dark deception?