The Mystery of Death Trap Mine

Random House Trade and GLB Hardbound Editions

First Printed: 1976

Cover Art: Jack Hearne

Internal Illustrations: Jack Hearne

ISBN's: Trade Ed. 0-394-83321-X; GLB 0-394-93321-4

Trade & GLB Edition First Printing Identifier: 1234567890 numberline on the copyright page.

Other Trade Edition First Printing Traits:

- Glossy cover finish

- Blank white endpapers

- Back cover listing to "The Mystery of the Dancing Devil"

Notes: Along with #27 and #28, this is one of the most difficult Hardbound

Trade Edition titles to find. Still, it is not a rare book.

Random House Revised Paperback Edition

"Keyhole Cover"

First Printed: 1984

Cover Art: Robert Adragna

Internal Illustrations: None

ISNB: 0-394-86424-7

First Printing Identifier: First Printings of this edition have no numberline on the copyright page. However, books with a rear inner list to "The Mystery of the Two-Toed Pigeon" and "The Three Investigators' Book of Mystery Puzzles" should be considered First Printings.

Random House First Paperback Edition

"Hitchcock Cover"

First Printed: 1980

Cover Art: Robert Adragna

Internal Illustrations: None

ISBN: 0-394-84449-1

First Printing Identifier: 1234567890 numberline on the copyright page.