Brother detectives Frank and Joe face the dangers of Black Bear Mountain once again in the twentieth book in the thrilling Hardy Boys Adventures series.
Is someone trying to sabotage their mission? And if they are, how can the brothers stop this invisible foe?.
In fact, they\'ve been downright unlucky.
Frank and Joe may have been better prepared for their second Black Bear Mountain adventure, but they\'re not having any more luck this time around.
K\'s research station, they find his cabin has been cleaned out and abandoned--the only current resident is an angry skunk.
And when they finally reach Dr.
Then their camp, including their radio--their only way to contact the outside world--is destroyed by wildlife searching for food.
It\'s not a good start to the investigation when Frank and Joe\'s ATV is put out of commission by a falling tree.
And so the teenage detectives Black Bear Mountain relied on before have been called in to help once again.
K is a fan of living off the grid, but he\'s been MIA long enough to cause worry in the small Mountain town.
Dr.
K, a friend they made during their first trip.
This time, the brothers are checking in on Dr.
Frank and Joe are back on Black Bear Mountain, the scene of a previous wilderness adventure and mind-bending mystery.
Brother detectives Frank and Joe face the dangers of Black Bear Mountain once again in the twentieth book in the thrilling Hardy Boys Adventures series
