My favourite Alan Class title. Watch out for issues #32 to #38 that feature cover reprints and stories of Fantastic Four #1 to #8 (missing out #7). Classic Jack Kirby artwork! A VF copy of #33 fetched £112 on eBay UK in Dec 2014.
Secrets of the Unknown #1 was published in the same month. Adverts saying On Sale Shortly suggest that Creepy Worlds came out in Aug 1962 as the first long-running Alan Class title followed two weeks later by Secrets of the Unknown.
Creepy Worlds #1 reprints the US comic title Mystic #59 from 1957 (see US section).
There are 3 un-numbered 'S' issues.
All the cover scans are now in as at Dec 2015 and I have upgraded them so they all look pretty uniform now. May 2019: more covers upgraded.
#32 is the hot issue reprinting Fantastic Four #1. 5th Sep 2019 a VG copy fetched £193. And in the same month a copy in VG and three other much less valuable Alan Class issues fetched an amazing £510!
Note: some PR issues may have no value. Selected issues in FN, VF or VF/NM may not exist in some titles.