“Did you have them when you left Bayport?” asked Joe.

“Of course I did. I never go anywhere without them. Who on earth could have taken them?”

“You can have mine,” offered Joe, going over to his own motorcycle. He snapped open the tool box on his machine and then gave a shout of astonishment.

“Mine are gone too!”

CHAPTER IV

The Chase in the Bay

The boys stared at one another in bewilderment.

“I know my tool box was full when I left home,” said Frank.

“And so was mine,” came from Joe. “I was using the pliers just before we started out.”

“Where could they have gone?”