Avengers #71
"Endgame!"
December 1969
The Black Knight intervenes as the Avengers are forced to battle the Invaders
- the Black Knight becomes an Avenger, but remains in England
reprinted in
*
40 Years of Avengers
2006, in collection
(2006*)
*
Avengers: Kang - Time and Time Again TPB
2005, in collection
(2005*)