"Come on," he said. "Tony and Biff are out in the bay already."
The Hardy boys sprang into their craft, and in a few minutes the Sleuth was nosing its way out into Barmet Bay. The boys could see the other boats circling about, as Tony and Biff awaited their arrival. Tony waved to them and in a short time they drew alongside the Napoli.
"Where shall we go?" shouted Frank.
"Anywhere suits me. Might as well just cruise around."
There was a roar as the Envoy surged up, with Biff at the wheel. Jerry Gilroy and Phil Cohen were with him.
"I don't suppose you want to go to Blacksnake Island, do you, Biff?" called out Joe.
"I'll say I don't! Once is enough."
"Me, too," chimed in Chet, as the three boats, running abreast, headed in the direction of Barmet village.
Blacksnake Island, out in the open sea some distance down the coast, had been the scene of perilous adventures for the chums. Some time previous Chet Morton and Biff Hooper had gone out in Biff's launch and had been kidnaped by a gang of crooks who mistook them for the Hardy boys and who wished to revenge themselves upon Fenton Hardy. They had been taken to Blacksnake Island, as has already