"Rats!" replied Chet good-naturedly. "I'm not afraid of the dark."
"Cut out the jawing and let's get started," said Biff Hooper. "No use hanging around here. Are you ready?"
"All set!"
"Let's go then. Good-bye, everybody."
"Good-bye!" every one shouted. Frank and Joe cheered, the girls clapped their hands, and the Envoy slowly moved away from the dock, with Chet Morton and Biff Hooper waving to their chums.
Tony Prito swung his motorboat around.
"I'll go along with you to the end of the bay," he shouted.
Frank glanced at Joe.
"Why didn't we think of that?"
"It isn't too late yet. Let's get the boat."
"Would you and Iola care to come?" said Frank to Callie. "We're going to get our boat and follow them down the bay a bit."
"Oh, that'll be great!" exclaimed Callie. "I'd love to go. Wouldn't you, Iola?"
"I'll say!" Iola replied, slangily.
They hurried down from the dock and went along the roadway back of the boathouses until they came to the boathouse where Frank and Joe kept their craft.
In a few minutes, the Sleuth was nosing its way out into Barmet Bay, but already Chet
