Originally published: New York: Scholastic, 2000.

A Scooby-riffic mystery series! The Gang get ready for some serious shopping when they head to the Happy Valley Mega Mall. Daphne, Fred, Velma, and even Scooby and Shaggy want to check out the new store, Dr. Yuckenstein's Make-A-Monster Laboratory where they can make their own customized monster dolls! But - ruh-roh - a mega-sized monster has come to life and is scaring away all the customers! It's a monster of a mystery that only Scooby-Doo and Mystery, Inc. can solve!

SCOOBY-DOO is an 'Ameri-canine' icon, the most beloved cartoon pooch of the past three generations. The snack-sniffing sleuth and his pals are in the midst of a huge popularity boom. Scooby and his friends are up against one of their spookiest frights ever -- the Headless Horseman! Has the legendary ghost come to life? Scooby and Shaggy are scared out of their wits... but the gang knows they gotta solve the mystery.

The reader is invited to solve the mystery of the television monster who is trying to close down the TV station.

The dog detective and his friends look for a treasure map on board an old clipper ship. But there is a ghost after that map, too!

Scooby and the gang are living the high life aboard a cruise ship. But everything changes when the ship's fortune-teller predicts bad things will happen to one of the passengers -- and her predictions start to come true! Looks like there's another mystery for Scooby and the gang to solve.