Tom and Ricky mystery series. [Set] 4

While spending the weekend camping at Bear Lake, Tom and Ricky find a girl being held for ransom.

Tom and Ricky decide to investigate when they suspect their friend Red Miller's motorcycle was sabotaged before the big race.

Tom and Ricky suspect something is wrong when Bandit, the dog belonging to Mr. Lake, an old inventor, shows up injured at Ricky's house.