Sergio Aragonés The Groo Jamboree — Maverick
Issue: #1
Groo has but one friend in the world -- the loyal, royal pooch known as Rufferto. So what happens when Groo (stupidly, even for him) thinks he's eaten his one friend in the world? This two-part tale from Groo's past, plus two more equally silly tales by Eisner winners Sergio Aragonés and Mark Evanier, comprise the Groo Jamboree!Collects #37-40 of Groo the Wanderer (Marvel/Epic)
Creators: Scott Allie, Sergio Aragonés, Philip DeWalt, Mark Evanier, Stan Sakai, Janice Cohen
Characters: Groo