The X-Men are working out in the Danger Room when the evil aspect of Xavier's mind attacks them with versions of the old X-Men.
Mainly a fill-in issue. On-sale date from Comic Reader (Street Enterprises, 1973 series) #143, May 1977. Not a variant, the 30? cover price was for the majority of the print run.
- - Inside front cover. Ad for various novelty items.
- Dark Shroud of the Past! - A fill-in issue that Classic X-Men skipped for reprinting.
- - Letters of comment from Ann Nichols, Kurt Homick, and Dave Clark. Includes a short eulogy of Bob Brown.
- - Includes Stan Lee's Soapbox. This promo is located between page 15 of the "Dark Shroud of the Past!" feature and the "Spider-Man and Madam Web!" ad.
- Spider-Man and Madam Web! - The ad is located between the "Marvel Bullpen Bulletins" page and page 16 of the "Dark Shroud of the Past!" feature.
- - Inside back cover. Ad for fishing gear.
- Spalding Presents Street Ball with Rick Barry and Dr. J.! - Back cover. Ad for basketballs.