Extreme DangerFranklin W. DixonHardy Boys: Undercover Brothers, book 1

Characters in Extreme Danger

2 characters, main characters first.

Main characters

Frank Hardy
Also in Terror on Tour, Danger Overseas, Boardwalk Bust, Thrill Ride, Martial Law, Blown Away, Hurricane Joe, Hazed, House Arrest, Murder House
Joe Hardy
Also in Terror on Tour, Danger Overseas, Boardwalk Bust, Thrill Ride, Martial Law, Blown Away, Hurricane Joe, Hazed, House Arrest, Murder House