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Detective Comics #366 cover
Cover: Carmine Infantino & Murphy Anderson

Detective Comics #366

Aug 1967 · DC · 0.12 USD
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In "The Round-Robin Death Threats," Bruce Wayne finds himself ensnared in a deadly game of psychological manipulation when a series of hypnotic letters begin targeting him and others, each laced with hidden traps meant to turn allies into unwitting killers. Written by Gardner Fox and brought to life by Carmine Infantino’s dynamic art and Sid Greene’s sharp inks, this 1967 thriller from Detective Comics #366 delivers a chilling mystery where every clue could be a trap. The cover, by Carmine Infantino and Murphy Anderson, captures the tension with a stark, foreboding image that perfectly sets the tone for the danger lurking in plain sight.

Contains 2 stories
The Round-Robin Death Threats
13.5 pp · Superhero
Batman [Bruce Wayne]Robin [Dick Grayson]Alfred PennyworthDoc HastingsJohn KoblerFred TinneyCommissioner Jim Gordon

In "The Round-Robin Death Threats," a mysterious sender uses hypnotic letters to manipulate a group of individuals, including Bruce Wayne, setting deadly traps in their personal belongings. As each victim is drawn into a web of suspicion and fear, the line between paranoia and peril blurs—before anyone can be sure who’s truly behind the scheme.

Robber Round-Up in Kiddy City!
8.5 pp · Superhero
Elongated Man [Ralph Dibny]Sue DibnyMr. Booththieves

ComicBooks.com Value

Our Model is In Beta
Raw (VG) $10
CGC 9.8 · 1 in census $1,375
CGC 9.6 · 5 in census $443
CGC 9.4 · 8 in census $229*
CGC 9.2 · 8 in census $133
CGC 9.0 · 13 in census $96
CGC 8.5 · 14 in census $76
Show all 19 grades
CGC 8.0 · 10 in census $76
CGC 7.5 · 5 in census $39
CGC 7.0 · 8 in census $32*
CGC 6.5 · 9 in census $31
CGC 6.0 · 3 in census $24*
CGC 5.5 · 4 in census $20*
CGC 5.0 · 2 in census $20*
CGC 4.5 · 1 in census $20*
CGC 4.0 · 2 in census $20*
CGC 3.5 none in existence
CGC 3.0 none in existence
CGC 2.5 none in existence
CGC 2.0 · 1 in census $20*
* estimate — limited direct-sales data at this grade
Our model’s value — refined as new sales data arrives · CGC census counts shown where available

More listings for this title

VG $7.99 VG $8.99 FN $9 VG+ $9.25 FN $9.99 VG $9.99 GD $11.99 GOOD $12.5
Related listings we couldn't confirm as this exact issue · 69 total · seen 27 days ago

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Full credits

cover pencils Carmine Infantino
cover inks Murphy Anderson

Reprints

Reprinted in Superman Supacomic #106 (1968), Super DC #1 (1969), Batman #262 (1975), The Greatest Batman Stories Ever Told #[nn] (1989), The Greatest Batman Stories Ever Told #[1] (1989), Showcase Presents the Elongated Man #1 (2006), Showcase Presents: Batman #3 (2008), Tales of the Batman: Carmine Infantino #[nn] (2014), Batman (2ª Série) #89

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