Score! Malcolm and Dandy have found a winning bottle cap and are ready to claim their prize. But on the way, Malcolm drops it and it rolls away. Thanks to a nice, old woman, the cap is happily returned-only to vanish into thin air. The boys soon learn that it was taken by the Great Zucchini, a famous magician of long ago. But Zucchini doesn't realize that Malcolm has a few tricks of his own. Calico Chapter Books is an imprint of Magic Wagon, a division...

Malcolm's favorite ghost hunting show, Ghost Stalkers, travels city to city searching for spirits. And now they've come to Malcolm's hometown! When the Ghost Stalkers bumble their chance of filming the Flying Hornswaggle, a legendary ghost ship, Malcolm and Dandy set out to get a picture of their own. But the ghostly pirates of the Hornswaggle have a different plan for the boys. Can the Ghost Detectors find pirate treasure and still be home for dinner?...

When Grandma Eunice gives Malcolm a strange bottle that she "won" during the 1939 World's Fair, it turns out to contain the ectoplasm of the performer that she tricked--so if Malcolm wants to keep his bottle he is going to have to figure out how to evict this stubborn ghost.

When Malcolm spots an advertisement for Mystic Mack's Grow A Ghost, he jumps at the chance to have a butler ghost to do his chores and homework, and spy on his sister--but soon things start to go wrong, and this ghost proves difficult to get rid of.