The board was brought, and Clay was soon on deck. The first thing he did was to turn off the lights.
“What did you do that for?” asked Case. “Alex never will find his way back here in the darkness!”
“Alex can hide in some thicket until we find out what’s going on,” Clay answered. “As for the Rambler, we want to drift down so those in the boat won’t know exactly where she lies.”
The boat drifted down on the sluggish current of the lagoon for perhaps two hundred yards, and then the anchor was dropped at a point very near to where the three blue lights had shown.
“Now, we’ll keep as quiet as three bugs in a rug till we find out what’s going on,” Clay said.
“What did you find out about the lights?” asked Jule.
“They went out before I got to them,” Clay answered.
“What do you think about them?” Jule insisted.
“I don’t think!” was the reply.
“Case insists that they are merely signals,” Jule went on.