Start year: 1967
Issues in volume: 26
Like the other two Fleetway Super Libraries (Front Line and Secret Agent series), the Stupendous Series ran from January 1967 to January 1968, two issue per month with alternating stars, for a total of 13 adventures each and 26 issues in total. In this series case, the two alternating leads were Valiant's Steel Claw and Lion's Spider. The first two issues were titled Fantastic Series, but retitled...
Publisher: Fleetway
Issues in this volume: