Published: August-September 1969
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Story Featuring Challengers of the Unknown
Across 23 pages, but pages 7 and 23 are 2/3 pages and page 12 is a 1/2 page. Prof is injured, intro of Corrina Stark who replaces him.
Ad Featuring Hot Wheels [Mattel Toys]
Back cover.
Ad Featuring Wallace Brown Greeting Cards
Inside back cover.
Ad Featuring Task Force , Ad Featuring Cannon Ball
Ad for two games sold by Helen of Toy, Co.
Ad Featuring Olympic Sales / Olympia Sales Cards
Letter Column Featuring Let's Chat with the Challs
Includes letters from Tony Isabella and Mike Barr.
Story Featuring The House of Secrets
"Dear DC fans..."
Ad Featuring Matchbox Models
Ad Featuring Ketsugo Manual
On the page between page 21 and page 22 of the main story sequence.
Ad Featuring 104 Cars
Ad Featuring United Schools Home Study
On the page between page 19 and page 20 of the main story sequence.
Ad Featuring Sea-Monkeys
Sold by Unicorn House. On the page between page 19 and page 20 of the main story sequence.
On the page between page 12 and page 13 of the main story sequence.
At the bottom of page 12 of the main story sequence.
Ad Featuring Palisades Amusement Park Admission
On the page between page 8 and page 9 of the main story sequence.
Ad Featuring Iverson Bicycles
Ad Featuring Revell Models
On the bottom of page 7 of the main story sequence.
Ad Featuring Aurora Products
On the page between page 6 and page 7 of the main story sequence.
Ad Featuring Honor House Products Novelties
Inside front cover.
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