Frank and Joe Hardy continue their undercover investigation of Gamma Theta Theta, a mysterious-turned-dangerous fraternity at an all-boys New England boarding school. The headmaster's meddlesome, trouble-making daughter is in danger, and it seems like the fraternity members - and even some of the faculty - will stop at nothing to protect their secrets.

 

This book features in the following series: Hardy Boys Undercover Brothers, Killer Mystery Trilogy, The Hardy Boys .

This book has been graded for interest at 9+ years.

There are 160 pages in this book. This book was published 2010 by Simon & Schuster Ltd .

Franklin W. Dixon is the author of the ever-popular Hardy Boys books.