“Dangerous,” declared Frank. “Might shoot the light on us at any moment. Can’t tell what those men are doing.”

The others felt that Merriwell was right. It might be very dangerous to be discovered.

“Shall we follow them?” asked Browning, who had been awakened in a most unusual manner.

“Perhaps. Wait and see.”

The wind howled, the fine sleet beat upon them, the white tigers roared from the distant shore.

“Down!”

Merriwell hissed the word, sinking to the ground. The others followed his example.

“What’s the matter?” asked Jack, throbbing with excitement.

“Coming,” answered Frank, laconically.

This was true. The men had left the pier, and they were advancing toward the boys.