called out. "Answer me truthfully, or I'll fire on you!"
This threat alarmed the Rover boys, for they saw that Merrick was in earnest.
"I guess our cake is dough," muttered Tom.
"Wait, I think I can scare him back yet," said Dick. "Let me do the talking."
"I say, who are you?" repeated Merrick. "You needn't pretend to be ghosts, for I don't believe in them."
"We are the owners of this isle," answered Dick, in the heaviest tone he could assume. "We are ten strong, and we order you to go back to your ship at once."
"The owners of this isle?"
"Yes."
"I don't believe it"
"You can do as you please about that. But if you come a yard further we'll fire at you."
"Humph! Then you are armed?"
"We are—and we know how to shoot, too."
"What brought you here at such a time as this?"
"We have a special reason for being here, as you may learn by to-morrow."
"Do you know anything of a treasure on this island?" went on Sid Merrick curiously.
