ENEMY FROGMEN
At the end of the test period, Bud had prepared to bring the jetmarine to the surface. But just as he was about to blow the ballast tanks, Mel Flagler sang out a warning from the sonarscope.
"Whoa! Hold it, skipper! I think we have company on the starboard beam!"
Bud jerked his head around in surprise. "You mean the Sea Hound?"
"No, she surfaced," Mel reported. "Can't make this out yet, but it could be another sub."
Bud turned the controls over to Zimby Cox. Then he rushed to the scope and examined the blip. "Seems to be moving away from us on a westerly course. It's about two miles from here."
He donned the hydrophone earset and listened. "It's no seacopter, nor a jetmarine either," he announced presently.
"A Navy sub, maybe?" suggested Zimby.
Bud shrugged. "Let's find out." He ordered a change of course, hard to the right, and gunned the jets to bring the jetmarine directly on the mystery object's trail.