At that moment the sun broke through the murk overhead. Its rays shone brilliantly upon the patch of blue sea on which the submarine patrol boat steamed at such a rapid pace.

The sunbeams pricked out the letters and figures painted so big upon the side of the craft and the Navy boys repeated in chorus:

"S. P., Eighty-eighty-eight."


CHAPTER V

THE STREAK ON THE WATER

The Navy boys arrived at the patch of shallow water over the Blue Reef at about noon. By that time the fog was pretty well dissipated, and they had a clear view of miles and miles of sea as well as of the coastline behind them and the narrow entrance to the cove.

The submarine chaser was out of sight. No other craft appeared upon the open sea beyond the Sue Bridger's present anchorage. The boys threw out a little chum, and then dropped their hooks.

"First nibble!" whispered Torry. "Now watch me play him."

But the first few "nibbles" proved to be merely "hook-cleaners." The fish got the bait, and the boys had the exercise of swishing their lines in and out of the water.