There's been a murder at Quicklime College and the world's most famous Forensic Special Investigator, Grusom, has been sent to investigate. With the help of his super-smart new assistant, Avid, and a can of magic beans, Grusom unearths the clues that will help him find the murderer. In no time, he has five suspects. Their names are Winchflat, Morbid, Silent, Merlinmary and Satanella Flood. Will the Floods be able to stay hidden from the law - and from the evil enemy who is secretly following their every move - until they can prove their innocence?