Mighty Avengers #20 (2008) Secret Invasion Marvel comic book. Written by BRIAN MICHAEL BENDIS, Penciled by KHOI PHAM, Cover by MARKO DJURDJEVIC. SECRET INVASION Aftermath! Shipping the week after Secret Invasion #8...the end of an era for the Mighty Avengers! Death and defeat at the hands of the Skrulls is just too much for even the Mighty Avengers. Watch the darkest day for the Avengers unfold before you and a shocking ending NO ONE will see coming. Guest-starring THOR!