Honk!

Bus 445 has a mind of its own--it honks for no reason! Is it a malfunction or a malicious ghost? Malcolm and Dandy open an investigation that has them colliding with a spiteful spirit. But can they steer him away from his mission of revenge? Their runaway adventure brings the reader along for a bumpy ride. Ten-year-old Malcolm would rather avoid his older sister, experiment in his lab, and read his science magazines than play sports. In one of his magazines, he comes across an advertisement for an Ecto-Handheld-Automatic-Heat-Sensitive-Laser-Enhanced Specter Detector. With that gadget, Malcolm and his best friend Dandy meet ghosts all around their neighborhood. Thus begins the boys' new careers as Ghost Detectors!