banner image
THE HARDY BOYS ONLINE: An unofficial online resource for fans of the Hardy Boys books

The Hardy Boys Secret Files

In many ways a successor to the short-lived Clues Brothers series that was cancelled a decade earlier, the Secret Files series began in 2010 and is targeted at younger readers than the regular Hardy Boys books.

1. Trouble at the Arcade (2010)


Warning: Undefined array key "sf-001" in /home/public/makecbli.php on line 4
2. The Missing Mitt (2010)


Warning: Undefined array key "sf-002" in /home/public/makecbli.php on line 4
3. Mystery Map (2010)


Warning: Undefined array key "sf-003" in /home/public/makecbli.php on line 4
4. Hopping Mad (2010)


Warning: Undefined array key "sf-004" in /home/public/makecbli.php on line 4
5. A Monster of a Mystery (2011)


Warning: Undefined array key "sf-005" in /home/public/makecbli.php on line 4
6. The Bicycle Thief (2011)


Warning: Undefined array key "sf-006" in /home/public/makecbli.php on line 4