Marvel Team-Up Vol 1 (1972) 36

Once Upon a Time, in a Castle Part 1 of 2. Guest-starring Spider-Man and the Frankenstein Monster. Script by Gerry Conway. Art by Sal Buscema (layouts) and Vince Colletta (finishes). Cover by Ed Hannigan and Mike Esposito. At some point in high school, Peter Parker probably read Mary Shelley's classic novel "Frankenstein." At no point though did Peter think he might someday team up with Victor Frankenstein's creation! But due to a strange series of events, the Amazing Spider-Man finds himself across the Atlantic Ocean, in the Balkans, and inside the castle of the evil Baron von Shtupf...with only one friend by his side: the Frankenstein monster! It's a literary team up for the ages as the wondrous wall-crawler and the man-monster from the pages of a 19th century novel join forces...to save the world! Cameo appearance by the Man-Wolf. (Notes: Frankenstein previously appeared in Frankenstein Monster 18. This issue includes a 2-page retelling of the origin of Frankenstein's monster.) 32 pages Cover price $0.25.