Jameson attacks Spidey with his new Spider-Slayer robot. Trying to dig up info that Jonah supposedly has on Spider-Man, Spidey runs across the strange density manipulating powers of Will-o'-the-Wisp. When the Spider-Slayer arrives on the scene, Spidey finds himself facing two baddies at once.
in Super Spider-Man (Marvel UK, 1976 series) #243 (5 October 1977) [pages 1-9, black and white], #244 (12 October 1977) [pages 10-17, black and white, plus new splash page, original title "Stalked By the Spider-Slayer"]
Total No. Copies Printed (net press run): Average no. copies each issue during preceding 12 months: 555,709; single issue nearest to filing date: 643,465. Located on lower part of page number 19.