Relive the epic war of DarkPoop in this collection of issues 29 and 30 from the Oni Press comic series, Invader ZIM! After Dib spills Gaz's limited edition DarkPoop Cola, he's forced to find her a replacement. But every convenience store is sold out, and Dib gets involved in the gaseous world of Poopromancers, sworn enemies of the evil and terrifying Poopthulu. To defeat him, they'll need the DarkPoop as well! (We say Poop a lot in this comic.)