Gladstone's School for World Conquerors #3

The Skull Brothers pay their mother a visit in a maximum-security prison where villains keep the worst of their own kind; those who have turned on other villains. But, whose side are the Skulls really on? The delicate armistice between superheroes and villains is threatened and nothing is as it seems.

Characters: Ghost Girl (Gladstone), Greensleeves, Ironsides (Gladstone), Kid Nefarious, Martian Jones, Mummy Girl, Skull Brother One, Skull Brother Two