Avengers #88

88

"The Summons of Psyklop"

May 1971

Psyklop kidnaps the Hulk; the Avengers fight a voodoo cult to find his hidden lair

marvel.com

continues in

* Incredible Hulk (v2) #140 "The Brute that Shouted Love at the Heart of the Atom!" June 1971 (6/1971) The Hulk shrinks and finds love in Jarella's world, but is taken away by Psyklop

reprinted in

* 40 Years of Avengers 2006, in collection (2006*)