He smiled as he heard the scattering cheer that greeted that announcement.

"The real way to the sailorman's heart lies through extra shore leave," he told Fernald.

"I wouldn't mind winning that prize myself," muttered the executive officer. "That is, if I were sure that I could honestly accept the leave without prejudice to duty."

"Find the periscope, then," smiled Darrin. "I am sure I can win the promised reward, even for the executive officer."

Not long afterward they were in plain sight of the "Gloucester." On she came, the smoke pouring from her pair of funnels. A fast craft, the hospital ship was making about her best time in her hurry to get safely across with her precious human cargo.

Then the "Grigsby" swung far out to port, cut a part of a circle, and came back on the hospital ship's port bow, darting ahead again, cutting across the hospital ship's bow far ahead and to port, then turning and crossing once more.

After the two craft had proceeded some distance farther the two mine-sweepers were sighted well ahead. These craft would soon turn and sweep the waters for mines ahead of the hospital ship.

Not mere fancy capers was the "Grigsby" cutting. As she crossed the "Gloucester's" bows time and again her lookouts were able to keep sharp watch to port and starboard of the ship that bore a human cargo of pain and suffering. It was the only way for a solitary destroyer to keep effective watch on both sides of the ship she was convoying.

Twice Dave used his glass to glance along the nearer rail of the steamship in search of Belle Darrin. He did not find her thus, and did not try again, for he must not fail in his unceasing watch for the ship's safety.

The mine-sweepers signalled their message of greeting, then turned and swung into place. From this point the "Gloucester" and her escort slowed down speed to accommodate that of the smaller craft.