Cover pencils by Carlos Pacheco, inks by Cam Smith. Enter, the Avengers!, script by Stan Lee, pencils by Jack Kirby, inks by Chic Stone; Xavier has tracked down Lucifer, the villain who cost him the use of his legs, but finds that he cannot attack as his foe's heartbeat is rigged to a giant thermal bomb; The X-Men arrive in Bavaria at Professor X's request and run across the Avengers who have also arrived, drawn by the evil Lucifer exhudes; In a classic hero vs. hero conflict, the X-Men have to stop the Avengers from taking down Lucifer as the Avengers have no idea that if they defeat Lucifer, the world will be destroyed; After Xavier gives Lucifer a mind blast that renders him unconscious, he contacts his team for help and the Avengers agree to let the X-Men clean up the current crisis on their own; Cyclops uses his eye beams to disable Lucifer's thermal bomb, ending the threat of one of Professor X's most personal foes; Reprinted from X-Men #9 (January 1965). Original Cover to X-Men #9, pencils by Jack Kirby, inks by Chic Stone. 36 pgs. $1.50. Cover price $1.50.