Our summer series finale! Quentin receives a long-awaited an answer from the author of his favorite detective series. But there's one last mystery for Quentin to solve: who is the true author of the Deke Benchley books?
Detectives Quentin and Sam start up a new case: who is covering the artwork in the school's hallways in graffiti?
Detectives Quentin and Same use some experimental (and curiously shaped) technology provided by Quentin's computer genius dad Phinneas to zero in on the computer-crashing culprit.
Something (or someone?) is causing all of the computers at Marlowe Middle School to crash, and it's wreaking havoc on the heating, the between-class bells, and, worst of all, the lunch menu! Can detectives Quentin and Sam solve the mystery before Sam's beloved tater tots are replaced by (gulp!) chickpea curry?
Now that detectives Quentin and Sam have infiltrated the middle school band, can they solve the mystery of the terrible smell?
Our detectives take on a new mystery: why does it (literally) stink so bad whenever the middle school band plays?
The viral dancing chipmunk video brings detectives Quentin and Sam closer to solving the mystery of the missing mascot head.
Our detectives take on a new mystery: what happened to the mascot's head? And is it possible that Dolores Kruppler, the cheerleader Quentin idolizes, has anything to do with the disappearance?
Can Quentin and Sam survive the Closet of Punishment and successfully recover the stack of unfairly seized Invader Cards, or will Mr. Clacker find them first?
Quentin and Sam take on their next case: retrieving a stack of valuable trading cards that the Bermick twins snatched from a fellow sixth grader. Sounds easy enough, but their quest to retrieve the stolen goods leads them to a confrontation with a formidable new foe: Mr. Clacker, Vice Principal in Charge of Discipline.