Eventually, with the help of the owner of the Cachalot, a carefully prepared trap is sprung and in a flash (literally, to take a night photo of the real culprits) the villains are discovered and the boys are exonerated. The source of their secret supply of money is uncovered when the local pub unveils the magnificent pike, now stuffed and mounted.
In the end, with assistance from the Cachalot's owner, a carefully set trap is sprung, revealing the villains in an instant (literally, to capture a night photo of the real culprits). The boys are cleared, and the source of their secret money supply is discovered when the local pub exhibits the magnificent pike, now stuffed and mounted.