Special one-shot from original series artist (and Invader ZIM character designer) Aaron Alexovich! When ZIM, master of fear, gets spooked by Dib, he'll do whatever it takes to prove he isn't scared of anything! Or that Dib is scared of something! Or that GIR is scared of everything! ANYWAY! ZIM is the master of fear here, and that's the MOST important!
PREVIEW: Action Comics #1016