Ghosthunters and the totally moldy Baroness!

Strange and stinky things are happening at Gloomsburg Castle. To begin with, the creepy place is crawling with TIBIGs (Tiny Biting Ghosts, per the Indispensable Alphabetical Index). And now it appears that the murderous spirit of a 400-year-old, Totally Moldy Baroness has possessed the palace's owner, infecting her with a killer case of hic-hic-hiccups! To put an end to the foul play and dispel this rank, decaying royal for good, count on ghost-busting boy wonder Tom, Averagely Spooky Ghost Hugo, and the ever-resourceful Hetty. Go ghosthunters!