As Earth’s first starship passes the light-speed barrier, strange things happen to its acceleration—and to the passage of time.

Time travel plays only a small role in Van Vogt’s three stories and a serial. The stories follow the immortal founder of The Weapon Shops, an organization that puts science to work to ensure that the common man is never dominated by government or corporations. Along the way, a 20th century man becomes a time-travel pawn, a young man seven millennia in the future takes advantage of a much shorter time-travel escapade, and you’ll spot at least one other time-travel moment.

All the stories were fixed up into two books, The Weapon Shops of Isher and The Weapon Makers, and the SFBC gathered both those into The Empire of Isher.

When the Glorious begin shanghaiing military recruits throughout time, Miss Norma Matheson and her once-and-future boyfriend Jack Garson are caught up in 18 versions of our solar system and a Glorious-vs-Planetarians war.

After his brother is killed by the Nazis, Herr Professor Johann Kenrube invents a machine that promises a little of everything to Hitler—unlimited energy and natural resources, instant transportation behind enemy lines, even a smidgen of time travel—but only after the Germans have over-committed themselves, does the truth about the machine emerge.

When salesman Ralph Carson Drake tries to recover his missing memory of the past two weeks, he discovers he had interactions with three people: a woman named Selanie Johns who sold remarkable futuristic devices for one dollar, her father, and an old gray-eyed man who is feared by Selanie and her father.

Van Vogt combined this with two other stories and a little fix-up material for his 1970 publication of Quest for the Future.

Four men set out for Alpha Centauri on a 500-year journey where each will awaken only a handful of times. That’s not time travel, of course, but be patient and you will run into real time travel.

Van Vogt combined this with two other stories and some fix-up material (especially for “Far Centaurus”) for his 1970 publication of Quest for the Future.

Each time a film goes through Peter Caxton’s projector at Tichenor Collegiate, it gets replaced with a different film from the future.

Van Vogt combined this with two other stories and a little fix-up material for his 1970 publication of Quest for the Future.

Hey, I got an idea! Let’s take three unrelated time-travel stories, change the name of the protagonist to be the same in all three, paste in some transition material, and call it a novel!

To be fair, I did enjoy this paperback when I bought it in the summer of 1970, but when I went to read van Vogt’s collected stories 42 years later, bits kept seeming familiar, which is when I discovered the truth. If I were a new reader, I’d just as soon read the individual stories and skip the conglomeration. The three stories are “Film Library,” “The Search” and “Far Centaurus” (all in van Vogt’s Transfinite collection).