Killer mystery trilogy

Frank and Joe Hardy's latest assignment takes them to the exclusive Willis Firth Academy, where a battle between the students and faculty takes a dangerous turn when someone tries to take out the new headmaster.

The Hardy Boys are determined to find out more about the dangerous secret society at Firth Academy, a private boarding school in New England, where the suspects include the fraternity brothers of Gamma Theta Theta as well as some of the faculty who seem to be interested in concealing Firth from the public eye.

The Hardy Boys look into shady occurrences at the Willis Firth Academy, a private boarding school in New England, where the fraternity brothers of Gamma Theta Theta struggle with dangerous problems and rivalries.

Frank and Joe investigate suspicious accidents at a private boarding school in New England.