Brother detectives Frank and Joe face perils in the wilderness as they try to track down their missing teacher in this thrilling Hardy Boys adventure.
Not only does Black Bear Mountain l.
Frank\'s there to geek out about nature while Joe\'s along for the thrills.
Max Kroopnik investigate local flora.
As part of a research unit, Bayport High\'s Green Environment Conservation Club (GECO) is taking a field trip--camping on nearby Black Bear Mountain, where the students will help field biologist Dr.
Brother detectives Frank and Joe face perils in the wilderness as they try to track down their missing teacher in this thrilling Hardy Boys adventure