Scotty, too, had heard the boat. He began to tread water, lifting his mask, then rinsing it because it had fogged a little.
Rick spotted the boat. It looked like a large row-boat, powered with an outboard motor, and it was headed in their direction.
Scotty took his snorkel out of his mouth. "Better stay topside and watch. We don't want to start our vacation by getting run over."
"Too true," Rick said. "Isn't this great? I've never seen so many kinds of small fish in one place in my life. Wait until we get out to the reefs where the big ones are."
Scotty patted his spear gun. "I'll keep us supplied with fresh sea food. Wonder if there are any lobsters around?"
But Rick had stopped listening. "Scotty, that guy is heading right for us!"
The boat was getting close, and through his face plate Rick could make out the figure of a single occupant.
Scotty suddenly gripped his arm. "Rick! It's our shadow!"
Rick started. "Are you sure?"
"Yes. I don't like this. What would he come out here for? Get ready to dive." Scotty pulled his mask into place and molded it to his face, then gripped his snorkel between his teeth.