From beyond the Unknown 1969 #4 - back issue - $5.00

Aliens from the planet Kallabar board an Earth spaceship, but find no humans aboard.

Aliens from the planet Kallabar demand the Earth surender to them or face total destruction. In response, Earthmen construct a specially designed spaceship to travel to Kallabar and meet the challenge head on.

From the time he was a little boy, David Haddon's scientist father experimented on his son, developing an uncanny advanced "homing instinct" in him. By age twenty David's homing instinct is so finely developed that the elder Haddon medically awakens an "ancestral memory" in David so that he may find "mankind's original home -- somewhere in the stars!" His homing instinct leads David to a distant planet where man's scientific meddling caused evolution to take a different path than on Earth.

Captain Jenkins and the crew of the Columbus land on the planet Klygor and discover a deserted city where a plaque says it was "built in the year 2558 by the officers and crew of the spaceship Columbus" and signed by Captain Jenkins... but no one has any memory of constructing such a city - or ever having been on the planet before. In addition, planetary conditions are breaking-down the spaceship element by element.

Discusses primates that have "hands", whether or not a spider's web material is dispensed in solid form, and that tomatoes and cucumbers are actually fruits and not vegetables.

On-sale date from copyright registration. Reprints of various science fiction stories from Strange Adventures (DC, 1950 Series) and Mystery in Space (DC, 1951 Series) fronted by a new cover.

• Riddle of the Vanishing Earthmen! - Credits for pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. New cover for an issue of reprints.
• Riddle of the Vanishing Earthmen! - Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. Story takes place in what was then, for both the original printing and this reprint, the future year of 1986. Halley's Comet is destroyed on-panel in this story.
• Our Home Is in the Stars! - Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. Takes place in the year 2120.
• For Sheer Suspense! - DC Comics house ad for Detective Comics. Reproduces the cover illustration for Detective Comics (DC, 1937 series) #398 (April 1970). "On sale Feb. 26 [1970]" Lower third of page.
• - Illustrated text article on various unusual aspects of astronomy.
• Messages from Beyond - Comments from readers Martin Pasko (future comics writer) and Gary Kuhlmann on issue #2, followed by an unusual turn... Julius Schwartz (or whoever may have ghost-written this column for him) offers the following: "While this department was in receipt of a few more comments on issue #2 of From Beyond the Unknown, none of these 'messages' was worthy of print. All of which give us timely opportunity to reprint a readers' column from the February, 1960 Mystery in Space Please keep that date in mind as you read it - plus that other memorable date - July 20, 1969 - mankind's first step on the Moon!" A letter from "A.G." from New York, NY speculates about the date when Earthmen will set foot on the Moon. In response, Schwartz offers several paragraphs of comments by experts on the subject. All told, the introduction, letter, and provided comments comprise about 3/4 of the letter column.
• The Surprise Package Planet! - Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics.
• For Every Mood! - DC Comics house ad for The Witching Hour, The Brave and the Bold, Action Comics, and Superman's Pal Jimmy Olsen. Reproduces the cover illustrations for The Witching Hour (DC, 1969 series) #8 (April-May 1970), The Brave and the Bold (DC, 1955 series) #89 (April-May 1970), Action Comics (DC, 1938 series) #387 (April 1970), and Superman's Pal Jimmy Olsen (DC, 1954 series) #128 (April 1970). All issues on sale during February 1970. Between pages 4 and 5 of previous story.
• For Suspense! - DC Comics house ad for Adventure Comics. Reproduces the cover illustration for Adventure Comics (DC, 1938 series) #392 (April 1970). "On sale Feb. 24 [1970]" Lower third of page.
• Simon Newcomb (1835-1909) - Illustrated text article on the work of astronomer Simon Newcomb.
• - Illustrated text article.