This is the
Warning: Undefined array key "hb-046" in /home/public/cover.php on line 52
cover for The Secret Agent on Flight 101.
- Series: Hardy Boys Canon (1-58), Volume: #46 (view list of titles in this series)
- Cover art by Nappi, 1967 (read about cover artists)
- Cover format 7
Image source: webmaster's personal collection