When Brett's skateboarding abilities dramatically and inexplicably improve after using The Lizard, a skateboard mysteriously unearthed in his front yard, his friends start to wonder if the skateboard is haunted.

Parker Nolan, a notorious liar, must convince his teammates that he saw a mysterious stranger stealing football plays from the coach's playbook.

After Micah's class adopts a tarantula as the new class pet, a mysterious chain of vanishing treats keeps everyone guessing, until the hungry culprit is finally discovered.

Freeze! This is Nancy's coldest mystery yet! It's winter break, and Nancy, George, and Bess can hardly wait for Sunday. That's the day of the big snow festival in town. This year the girls are entering the snow sculpture contest. They already know what they are making, too: They are going to build swans from the ballet Swan Lake! Nancy and her friends only have three days to make the most fantastic sculpture they can. But when someone begins wrecking...