The follow-up to the Tim-Burton-esque middle grade graphic novel that Max Brallier calls "Equal parts nightmarish and outrageously funny!" Milo and Sunny may have saved Shock City and its citizens from ruin, but that doesn't mean everything is peachy. As the town continues to deal with the aftermath of Darkness Von Shock's reign of terror, a new team of instigators arises: hotheaded brothers who Becky lovingly refers to as the Diaper Twins. They lead the town in blaming Sunny and her parents for all the issues Shock City still faces. Milo is enraged that the Diaper Twins have scapegoated the Von Shocks, but then Becky convinces Milo and Sunny to blow off some steam and play a few harmless pranks on the twins. Little do Milo and Sunny know Becky's setting her own plans in motion, plotting to bring back an old friend even more sinister than ol' Darkness Von Shock himself.