WORLDS UNKNOWN #8

Cover shows strong gloss and sharp corners with only minor rubbing at the extreme corner tips. There is slight edge wear along the top and right border and a faint bend near the lower left corner, but no significant creases or color breaks are visible. The book is in a protective sleeve which limits full inspection; spine and back cover were not assessed, and interior pages were not visible for this grading.

Worlds Unknown launched in 1973 as Marvel's attempt to bring classic prose science fiction into comics form, adapting published short stories and novels for a readership already primed by the era's paperback SF boom. Issue #8, cover-dated August 1974, closed out the title after a short, low-circulation run, making it part of a series remembered less for any single first appearance than for its place in Marvel's broader mid-1970s experiments in licensed and literary adaptation alongside companion titles like Unknown Worlds of Science Fiction. The book carries no origin, first appearance, or death of note, and its interest rests on its anthology pedigree and scarcity rather than any recognized key moment.

Market activity is sparse and thin at every tier: certified population sits at just 26 Universal copies out of 28 total graded, with almost no recorded sales above the mid-grade range and none whatsoever at the top of the census. The one hard data point, a 7.5 copy trading near $40, anchors a curve that must be extrapolated in both directions, and the absence of any 9.8 sale despite five such copies on record points to a book that rarely surfaces in top condition on the open market rather than one lacking high-grade survivors. Demand is driven almost entirely by Bronze Age Marvel completists and readers assembling the short-lived Worlds Unknown/Unknown Worlds adaptation run, a narrow but persistent collecting niche.

This is a book that trades quietly: low-grade copies move as inexpensive fillers for long-box browsers and series runs, mid-grade raw copies attract modest premiums from readers seeking presentable unrestored examples, and a 9.8 slab would likely draw interest primarily from census-chasers and registry builders given the tiny population at the top. Expect infrequent listings, wide pricing latitude between recorded sales, and a buyer pool weighted toward Bronze Age adaptation specialists rather than mainstream superhero investors.