Beyond the End of Time

From Author Wars - https://authorwars.com/books/beyond-the-end-of-time-99748.html

Overview:

Title: Beyond the End of Time
Author: Ray Cummings
Year: 1942
Type: Short Fiction

Editions/Publications:

Unknown. Super Science Stories, November 1942 (Unknown, Ray Cummings, Fictioneers, Inc., $0.20, 148 pages, pulp, MAGAZINE)
Unknown. Super Science Stories (Canadian), April 1943 (Unknown, Ray Cummings, Popular Publications, Inc.; Toronto, Canada, C$0.15, 100 pages, pulp, MAGAZINE)