When Two Worlds Meet: Stories of Men on Mars by Robert Moore Williams (1970)

When Two Worlds Meet: Stories of Men on Mars, by Robert Moore Williams (1970)

At left: Paperback original (New York: Modern Literary Editions, 1970), 222 p., 75¢. Here's the blurb from the back cover:

“Man has stamped his footprints on the Moon. Tomorrow he will venture further -- to touch the planets, to capture the stars, to journey to the edge of infinity ... and beyond. Imagine that future -- when the quest for supreme power drives beings to conquer not one nation, not even one planet, but the vast and endless whole of the Universe. When Two Worlds Meet is the story
of that extraordinary time, of the evil ones whose will is Universal subjugation, and of those brave beings who bear the fight for freedom to the very brink of time itself. When Two Worlds Meet -- Dazzling science fiction from a master, Robert Moore Williams.”

The contents of this collection, which has red colored page ends, include:

• “When Two Worlds Meet,” a novelette originally published in Amazing Stories (April 1950)

• “Aurochs Came Walking,” a shortstory originally published in The Magazine of Fantasy and Science Fiction (December 1953)

• “On Pain of Death,” a novelette originally published in Astounding Science-Fiction (June 1942)

• “The Sound of Bugles,” a shortstory originally published in Startling Stories (March 1949)

• “The Final Frontier,” a shortstory originally published in Super Science Stories (January 1950)

• “When the Spoilers Came,” a novelette originally published in Planet Stories (May 1952)