Comic Title: Mystery in Space #69
Publisher: DC (National Comics Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: August 1961
On Sale Date: June 6, 1961 Copyright Date June 6, 1961
Source: Library of Congress, Periodicals 1961

Frequency: Monthly, with the exception of Jan., April, July and October
Cover Price: $0.10
Page Count: 32
Editor: Julius Schwartz

Title: "What Happened on Sirius-4?"
Pages: 8

Feature(s):
Star Rovers

Writer: Gardner F. Fox
Artist: Sid Greene

Reprinted In:
Strange Adventures #233 (1971)
Pulp Fiction Library:Mystery in Space TPB (1999)

Feature Character(s)

• Star Rovers (Karel Sorensen, Rick Purvis, and Homer Glint; last appearance in Mystery in Space #66; next appearance in Mystery in Space #74)

Villain(s)

• The Sorn (an war-like alien race; no further appearances)

Other Character(s)

• The people of Kalmoral (no further appearances)

Comments:
The name Star Rovers is not officially used by the adventurers in this story.

Synopsis:
After receiving a distress call, three adventurers, who would later be known as the Star Rovers, travel to the planet Kalmoral in the Sirius system to learn what happened to the people. Rick Purvis believes that the people and their cities were destroyed long ago by alien invaders. Karel Sorensen discovers a strange ramp, which she believes helped the population teleport to safety. Homer Glint finds an underground chamber with the missing population sleeping in suspended animation. He believes they placed themselves into comas to avoid the harmful effects of a magnetic force endangering their world.

While comparing stories, an alien ship attacks, then is strangely disintegrated. A man appears and explains the true story of Kalmoral. An alien race, known as the Sorn, attacked their world. To fight their enemies, the ramp was constructed and powered by the concentrated minds of its sleeping people. The distress call was a lure to get the Sorn to attack, so the people of Kalmoral could use the weapon against their enemies.

Having been proven wrong, the adventurers return home, agreeing to keep the secret of the sleeping world until it is safe from the Sorn.