Comic Title: Chamber of Darkness #3
Publisher: Marvel (Magazine Management Co., Inc.)
Address: 625 Madison Avenue, New York, NY
Cover Date: February 1970
On Sale Date: November 18, 1969 Copyright Date October 28, 1969
Source: Library of Congress, Periodicals 1969
Marvel's LoC entries after April 1969 are erroneous
Marvel began reporting dates weeks earlier than actual release

Newsstand Date November 18, 1969
Source: Newsdealer Magazine, V24 #9

Frequency: Bi-monthly
Cover Price: $0.15
Page Count: 32
Editor: Stan Lee

Title: "Something Lurks on Shadow Mountain"
Pages: 7

Writer: Roy Thomas
Penciller: John Buscema
Inker: John Verpoorten
Letterer: Sam Rosen

Reprinted In:
Tomb of Darkness #18 (1976)