"There they are now!" cried Sammy, in much excitement.
"Who?" Bob wanted to know.
"Some of the wreckers! They're making signals! Don't let them see us!"
Frank and Bob hesitated. They did not know what to do, and, though they knew that Sammy was much given to imagination, and to excitement, this time he might be partly right, they thought.
"What shall we do?" asked Frank.
"Let's get away from here," proposed Bob.
"Come on—run!" advised Frank.
"It's too late—they've seen us and they're coming right this way!" exclaimed Bob. The person with the lantern, whoever he might be, was headed directly for the boys, and coming on swiftly.
"Fellows, we can't run," called Sammy. "Whatever happens we've either got to give the alarm about the light being out, or we've got to go to the tower, see what's the matter, and start it ourselves. We've got to stand our ground."