She glided into the harbor between the Tusks as if she knew every inch of the channel, and brought up close to a flat surface of rock on one of the Tusks, which formed a natural pier. Then the hatches were opened, and shaded lanterns gleamed about the deck.

Ned glanced back over the mountain, and was astonished at seeing a green signal light there, almost at the top. The men on the schooner saw the signal, too, for Ned could see them pointing at it, could hear them laughing as if a great point had been gained.

"Wonder why we didn't see that?" asked Frank. "It must have been there when the lights showed from the ships."

"We didn't go up high enough, or it might not have been there when we were looking," was the reply.

"Well," Frank said, then, "if we didn't see the chap who is tending that light on the mountain, he must have seen us; or if he didn't see us he must have heard the engine of the Manhattan doing her talking stunt."

"Probably," replied Ned.

The matter was more serious than his manner indicated, for he turned quickly and walked toward the Manhattan, calling out softly to Pat as he did so. There was no answer for a moment, and then it came in the shape of a dozen pistol shots.

Ned dropped down behind a clump of bushes and waited for an instant, resolved to know what was going on at the boat before advancing. Then the boys from the camp came running up, asking questions, and all made a rush for the boat.

When they came within sight of the spot where she lay, they saw that she was moving out into the bay, and that Pat was standing by the engine whirling the fly-wheel. On the shore were a score of Filipinos, standing with guns turned toward the boat.

The boys saw Ned and Frank spring forward, saw them hesitate an instant, and then drop to the ground. The Manhattan swung out into the bay with engines snapping and propeller churning the smooth waters.