[GRAMPA Mentions]
Written by
Dan Slott (writer), Rafa Sandoval (pencils), Roger Bonet Martinez (inks), John Rauch (colors), David Lanphear (letters)
Released 2009
Printed in The Mighty Avengers #25, #27-#31, July 2009 - January 2010.
Numerous quick references to GRAMPA are made by new, temporary members, the Mighty Avengers, using GRAMPA authority to combat numerous adversaries. There is no presence of nor mentions of Blackjack.