"That man's one of the wreckers!" whispered Sammy, hoarsely. "He's just been to the lighthouse to put out the lamp, and now he's going to join his gang. We'd better not interfere with him."
"Why, I thought you said he was looking for pirate gold!" exclaimed Bob.
"Well, I guess I was mistaken," admitted Sammy. The boys had come to a stop, and were looking after the man who was running away from them, his lantern bobbing from side to side. "I'm sure he's a wrecker anyhow," went on Sammy. "He looked like a desperate character!"
"Say, I don't believe you know what you're talking about!" burst out Frank. "Maybe that man has seen the trouble at the lighthouse, and has gone for help. But, for all that, I think we'd better go there ourselves, and see if we can do anything."
"Maybe you're right," admitted Sammy, as he looked in the direction of the bobbing lantern. "Anyhow I don't believe it would be a good thing to follow that man. Say, we're getting as badly mixed up in a mystery here, as we were on Pine Island."
"Yes, and maybe it will turn out just as easy," spoke Frank.
"No, I'm sure something is going to happen here," insisted Sammy. "The light being out, for one thing, shows that, and the old man digging for pirate gold is another. But come on, fellows. Some ship may go on the rocks while we're talking here."
"There's no storm, that's one good thing," murmured Bob. "I thought wreckers only worked during a storm."
"Maybe they do things different here," said Sammy. "Come on!"
They started again toward the lighthouse, now and then looking up toward the tall tower in the hope of seeing the