Tales To Astonish #74 (5.5)

Sub-Mariner battles The Faceless Ones to try to save Dorma while Krang stops a rebellion in Atlantis.; The Hulk fights the baddest alien in the galaxy over the Watcher's ultimate machine. After the battle, the Watcher allows Hulk to take it and he is teleported back to the Leader's lair. The Leader tries to use the machine which dispenses all of the Watcher's collected knowledge but even his big brain can't handle it and the strain kills him.