#31 The Mystery of the Scar-Faced Beggar
By M.V. (Mary Virginia), 1981
First Printed: 1981
Cover Art: Robert Adragna
Internal Illustrations: None
ISBN: 0-394-94903-X
First Printing Identifier: 1234567890 number line on the copyright page.
Notes: This is the book that introduced the fictional character of Hector Sebastian after Alfred Hitchcock's death in 1980. The series is now officially known as "The Three Investigators Mystery Series".
First Printed: 1981
Cover Art: Robert Adragna
Internal Illustrations: None
ISBN: 0-394-84903-5
First Printing Identifier: 1234567890 number line on the copyright page.
Notes:
1.) This is the book that introduced the fictional character of Hector Sebastian after Alfred Hitchcock's death in 1980. This title was not revised along with previous titles in the series in 1984/1985 which makes for an interesting glitch when reading the "Keyhole" series straight through.
2.) Early printings of this book can be found with the Mystery Quiz/Bookmark page attached inside the front or back cover.