The game is afoot and Elementary, when Lisa sets out to find the fiend behind the theft of the school’s beloved mascot. Then, Bart and Lisa are both saddled with brain rattling substitute teachers, but with one big difference — Bart’s new teacher thinks Bart is a genius, while Lisa’s teacher thinks she's an underachiever! Also, witness the daring exploits of Krusty, Agent of K.L.O.W.N., and the totally gnarly, post-apocalyptic adventures of Busman. Collects Simpsons Comics #3-4.