Extreme danger /
Franklin W. Dixon.
- New York : Aladdin Paperbacks, c2005.
- 165 p. : ill. ; 20 cm.
- The Hardy boys, undercover brothers ; #1. .
- Dixon, Franklin W. Hardy boys, undercover brothers ; #1. .
Frank and Joe travel to Philadelphia where they intend to prevent an attack on an extreme sports contest called the Big Air Games.
008-012.
1416900020 (pbk.) : $1.99
2004113061
Hardy Boys (Fictitious characters)--Fiction. Extreme sports--Fiction. Mystery and detective stories. Children's literature--2006.