26 books in series

Hardy Boys: Undercover Brothers

Hardy Boys: Undercover Brothers is a 26-book series with 26 released primary works first released in 2005 with contributions by Franklin W. Dixon.

Cover 8

Running on Fumes

Boardwalk Bust
Cover 8

Thrill Ride

Burned
Operation: Survival
Martial Law
Hurricane Joe
The Mummy's Curse
Hazed
Death and Diamonds
Bayport Buccaneers
Murder at the Mall
Deprivation House
House Arrest
Murder House
Double Danger Trilogy
Cover 2

X-plosion

Cover 3

The X-Factor

Cover 6

Killer Mission

Cover 1

Private Killer

Cover 8

Killer Connections

Cover 4

The Children of the Lost

Cover 3

Lost Brother

Cover 5

Forever Lost

Movie Menace, Hardy Boys #37
Movie Mayhem: Book Three in the Deathstalker Trilogy