Ray Cummings 2 hr 27 min read

Are there other worlds side by side with ours, unseen and unsuspected? Three explorers pass through the wall into a shadowy realm, a strange land, a stranger people, a fantastic enemy.

Ray Cummings's 1941 novel (first serialized in the 1920s) is a classic dimensional-adventure romance from a pioneer of the pulps. Vivid, imaginative early SF. Read it for a rousing tale of intrepid travelers crossing into a parallel world and the peril they find there.

In its time

Published in 1941, during the 1940s, the golden age begins.

Reading it

2 hr 27 min read (a novella, a full arc in one sitting or two).