
ventures. Infinity was his special pride, a low-budget magazine that ran high-budget stories by the likes of
Arthur C. Clarke, Isaac Asimov, James Blish, Damon Knight, C.M. Kornbluth, and Algis Budrys; it even
published Harlan Ellison’s first science fiction story. I was a regular contributor to Infinity and many of my
best short stories appeared there. The companion magazine, Science Fiction Adventures, was less
ambitious, a blood-and-thunder operation done strictly for fun, featuring novelets of interstellar intrigue
and blazing ray-guns. I was a regular contributor to SFA, too: in fact, I practically wrote the whole
magazine. As I look through my file copies, I see a long story or two by me (usually under some
pseudonym) in virtually every issue—“Battle for the Thousand Suns,” “Slaves of the Star Giants,”
“Spawn of the Deadly Sea,” and so on. I had fun writing these melodramas of the spaceways, and the
readers evidently enjoyed them too, for my stories (under whatever pseudonym) were usually the most
popular offerings in each issue.
The original format of SFA provided Three Complete New Action Novels (actually, novelets 15,000 to
20,000 words in length) in each issue, plus a few short stories and features. But with the seventh issue,
October, 1957, editor Shaw decided to vary the pattern a bit, running only two “novels,” a long one and
a short one. I was his most reliable contributor, so he asked me to write the “Book-Length Novel” to
lead off that issue. I turned in a 28,000-word piece called “Thunder Over Starhaven,” which appeared
under a pseudonym and which I eventually expanded into a novel. The innovation was successful,
apparently, for soon Shaw tried another experiment: filling virtually an entire issue with one novel.
Again he asked me to do the job. This time it was agreed that the story would appear under my own
byline, since “Robert Silverberg” was by now a better known name than any of the pseudonyms I had
been using in the magazine; and, since the story would bear my own name, I was a trifle less flamboyant
about making use of the pulp-magazine cliches beloved by the magazine’s readers. There would be no
hissing villains and basilisk-eyed princesses in this one, no desperate duels with dagger and mace, no
feudal overlords swaggering about the stars. Rather, I would write a straightforward science-fiction
novel, strongly plotted—but not unduly weighted toward breathless adventure.
“Shadow on the Stars” is what I called it, and that was the name it appeared under in the April, 1958
issue of Science Fiction Adventures. The cover announced in big yellow letters, “A COMPLETE NEW
BOOK—35¢” and indeed it did take up most of the issue, spanning 112 of the 130 pages and leaving
room only for two tiny short stories and the feature columns. Mainly it was a time-paradox novel—a
theme that always has fascinated me—but there was at least one concession to the traditional policy of
the magazine, a vast space battle involving an “unstoppable armada” of “seven hundred seventy-five
dreadnoughts.” I chose to handle the big battle scene, though, in a very untraditional underplayed manner,
as you will see; and I did a bit of fooling around with the ending, too, providing two twentieth chapters.
The readers loved it. The next issue was full of letters of praise, including one that said, “Silverberg is
becoming a really disciplined artist,” and asserted that “Shadow on the Stars” seemed somehow to
synthesize the previously antithetical traditions of Robert A. Heinlein and E.E. Smith. (Actually, I thought
it owed more to A.E. van Vogt.) And then Science Fiction Adventures went out of business, for reasons
unconnected with the quantity of material I was contributing to it. A lot of magazines folded in 1958,
including a few that I never wrote for at all.
The next destination for “Shadow on the Stars” was Ace Books. Editor Donald A. Wollheim bought it,
retitled it Stepsons of Terra, and published it later in 1958 in his Ace Double Novel series, with a book
by a British writer, Lan Wright, on the other side.
What Lan Wright is doing these days, I have no idea: But here is Shadow on the Stars, back in print
under its original title for the first time since its historic original appearance more than forty years ago, for
your amusement.