Malcolm always thought the librarian at the Franklin County Library was cranky. She constantly shushed him and insisted the library was haunted. Boy was she right! When Malcolm and Dandy have school reports to research, Malcolm's library book keeps disappearing and returning to the library! Could it be a ghost? It is up to the Ghost Detectors to get the library back in order! Book 6 in the series.
Malcolm and his best friend Dandy aren't like other 10-year-old boys. Malcolm would rather avoid his older sister, experiment in his lab, and read his science magazines than play sports. In one magazine, he comes across an advertisement for an Ecto-Handheld-Automatic-Heat-Sensitive-Laser-Enhanced Specter Detector. Its arrival is the beginning of the boys' new career as Ghost Detectors when they discover a practical-joking poltergeist! Book 1 in the series
A Ghost Detector's job is never done--not even when school starts! Malcolm and Dandy spent their summer hunting ghosts with their trusty specter detector and ghost zapper. On the first day of school, Malcolm's digital camera captured some very strange paranormal activities in Waxberry Elementary School. Now they have to bring a message to an even bigger fright, their fifth-grade teacher Mrs. Goolsby! Book 3 in the series.
Malcolm and Dandy may only be 10-year-old boys, but they've already experienced something most adults never do--a ghost! Malcolm's Ecto-Handheld-Automatic-Heat-Sensitive-Laser-Enhanced Specter Detector did its job at the McBleaky house. Malcolm is hoping his next gadget, the Ecto-Handheld-Automatic-Heat-Sensitive-Laser-Enchanced Ghost Zapper, will work on the ghost haunting the Millers' house! Book 2 in the series.
Malcolm's dad thinks it's time Malcolm and his best friend Dandy get out of the basement lab and started doing the things that other 10-year-old boys enjoy. So, they are going camping--in October! The best part of camping at Lake Itchyburr is the Legend of Wild Willy Wallace. The Ghost Detectors are ready to face the smelly, ghostly outlaw--it's a good thing Malcolm brought the specter detector and ghost zapper along! Book 5 in the series.
It's time again for the Franklin County Fair! Malcolm and Dandy can't wait to ride the rides and eat the fair food, even if they have to watch Malcolm's sister, Cocoa, compete for Fair Queen. But something strange is going on in the Screaming Mansion. When the carnival worker, Gus, dares them to enter, they discover more than just a stray cat. The Ghost Detectors never get time off! Book 4 in the series.
The local movie theater is hosting Horrorfest--two days of backtoback monster movies. Malcolm and Dandy can't wait to see their favorite horror classics up on the big screen. But the spine tingling chills continue even after the movies end. The Wolfman, The Fly, and King Kong have escaped their black and white films and are after Malcolm and Dandy! After much ducking and dodging, the boys discover that it's more than cinema magic. The secret lies behind the small window of the theater's projection booth. Book 12 in the series.