#28 The Mystery of the Deadly Double
By William Arden (Dennis Lynds), 1978
Random House Hardbound Trade and GLB Editions
First Printed: 1978
Cover Art: Herb Mott
Internal Illustrations: Herb Mott
ISBN's: Trade Ed. 0-394-83902-1; GLB 0-394-93902-6
Trade & GLB Edition First Printing Identifier: 1234567890 numberline on the copyright page.
Other Hardbound Trade Edition First Printing Traits:
- Glossy cover finish
- Plain white endpapers
- Back cover lists to "The Mystery of the Deadly Double"
Notes: This was the last title to be published in a Hardbound Trade Edition and the last to feature internal illustrations. Along with #24 and #27, this is one of the more difficult Hardbound Trade Edition titles to find.
Random House Revised Paperback Edition
"Keyhole Cover"
First Printed: 1985
Cover Art: Robert Adragna
Internal Illustrations: None
ISBN: 0-394-86428-X
First Printing Identifier: 1234567890 numberline on the copyright page.
Random House First Paperback Edition
"Hitchcock Cover"
First Printed: 1981
Cover Art: Robert Adragna
Internal Illustrations: None
ISBN: 0-394-84491-2
First Printing Identifier: 1234567890 numberline on the copyright page.
Notes: As with all of The Three Investigators paperback titles printed in 1981, this book can be found with the Mystery Quiz/Bookmark page attached inside the front or back cover.