FANTASTIC FOUR #31

Graded at 4.0 (VG) on 2026-10-30, from new photos taken out of the sleeve: front, close-up, back, spine and interior page. Small chip and lifted flap at the bottom staple of the back cover. Name inked inside the front cover. Many color-breaking spine ticks and a blunted lower-left corner. Rippled surface in the dark areas with small creases. Cream pages.

Fantastic Four #31 (October 1964) continues the Stan Lee and Jack Kirby run that defined Marvel's early 1960s output, pitting the team against the returning Mad Thinker and his formidable Awesome Android while weaving in a subplot involving Sue Storm's law-school ambitions. Chic Stone's inks give Kirby's pencils a clean, dynamic finish typical of the title's mid-run peak, and the issue reflects the era's growing sophistication in blending science-fiction spectacle with character-driven soap-opera elements that made the series a critical commercial and creative success for Marvel.

Market data shows a steep, non-linear value curve typical of well-collected Silver Age Marvel: raw copies in low and mid grades trade in the tens of dollars, but values escalate sharply above 8.5, with a near-doubling from 9.2 to documented 9.4 sales near $2,500. Census scarcity above 9.4 is pronounced, with only a handful of 9.6 and 9.8 copies known and no recent sales at those levels, indicating that top-grade examples are rarely offered and command outsized premiums when they do appear. Demand is driven primarily by dedicated Fantastic Four and Lee-Kirby run collectors rather than by any single first appearance, since neither the Mad Thinker nor the Awesome Android debuted in this issue.

This book fits best in the collecting outlook of Silver Age Marvel run-builders and Kirby specialists assembling complete Fantastic Four sets rather than key-issue speculators. Lower and mid-grade copies move steadily as affordable entries into the classic Lee-Kirby stretch, while high-grade certified examples are scarce enough that a fresh-to-market 9.6 or 9.8 would likely draw active bidding from census-completionists and top-grade registry collectors. Overall, the issue trades as a solid, dependable mid-run Silver Age book whose value is anchored in condition census rarity rather than any singular historical event within its pages.