Captain Britain And MI13 #1 3rd Third Print Sketch Variant (2008) Secret Invasion Marvel comic book. Written by PAUL CORNELL, Penciled by LEONARD KIRK, Cover by BRYAN HITCH. SECRET INVASION TIE-IN! The Skrull Invasion isn't restricted to the US.When the Skrull Invasion hits England, only Captain Britain and MI: 13 stand in their way.Can they find out what the Skrulls are after before it's too late?