Starting in 1941, unsold issues of "Fantastic Adventures" were rebound, three together, with a new cover, titled "Fantastic Adventures Quarterly". There were eight of these quarterly issues between Winter 1941 and Fall 1943; they were priced at 25 cents and given a volume numbering from volume 1 number 1 to volume 2 number 4. Another similar series was started in Summer 1948, for 50 cents; there were eleven of these, running from volume 6 number 1 to volume 9 number 1, finishing with the Spring 1951 issue and omitting Spring 1949.