The fifth and final volume of Problem Sleuth is divided into five chapters. Team Sleuth and their allies fight both Demonhead Mobster Kingpin and the original Mobster Kingpin, who acquires new powers that threaten the entire universe. Click the "File:Mspa icon.png" to open the page from Problem Sleuth. Second-level bullets represent branching paths; branching paths in italics result in dead ends.