CHAMBER OF DARKNESS #2

Cover shows good gloss and bright colors with sharp corners overall; minor wear is visible at the top left corner tip and a faint vertical crease line near the left edge of the price box. There's slight rubbing along the top edge and a small stress mark near the spine, but no major creases, tears, or color breaks are apparent. The book is in a protective sleeve which adds some glare, and the interior and back cover were not assessed.

Chamber of Darkness #2 belongs to a short-lived line of horror anthologies Marvel launched at the close of the 1960s, alongside Tower of Shadows, as the company tested the suspense-anthology format that the Comics Code had long suppressed and that would flourish fully once the Code loosened in the early 1970s. Structured as a collection of short macabre tales rather than a continuing superhero narrative, the issue reflects Marvel's effort to diversify beyond costumed-hero fare using its bullpen's genre artists, and it sits at the tail end of the Silver Age just months before Marvel's horror output expanded dramatically.

Demand for the issue is driven almost entirely by anthology-horror completists and CGC-registry builders rather than by any first appearance or landmark story, which is reflected in the FMV curve: values stay flat and modest across the 4.5 through 8.0 range before rising sharply at 9.4 and above, a pattern typical of a book whose worth is concentrated in condition rarity rather than content. The relatively small universal census, with clusters of only a handful of copies at each mid grade and just seven copies at the 9.8 apex, produces a steep premium for top-graded slabs even without a large sales sample backing every rung.

This is a book collected primarily by Bronze Age horror-anthology specialists, Marvel completists assembling the Chamber of Darkness/Tower of Shadows run, and registry participants chasing high census grades; it is not a mainstream key sought by casual buyers. Raw copies in low and mid grades trade cheaply and steadily as reading or filler copies, while the market divergence appears almost entirely at the certified high end, where scarcity of pristine copies rather than character or creator significance sets the price.