Then it dawned fearfully upon him that something must be wrong. Trembling with anxiety, he climbed up and peered in among the wheels.

The escapement wheel was cracked clean through, as if some one had struck it with the head of an axe, and one of the pallets of the spindle was stuck fast in the crack. He could knock it out easily enough, but when the crack came around again, the pallet would catch and the clock would stop once more. It was a fatal injury.

Baptiste turned white, then red, gripped his head in his hands, and ran down the steps, out of the door, straight toward his canoe, which was pulled up on the western side of the island.

“DAME!” he cried, “who has done this? Let me catch him! If that old Thibault—”

As he leaped down the rocky slope the setting sun gleamed straight in his eyes. It was poised like a ball of fire on the very edge of the mountains. Five minutes more and it would be gone. Fifteen minutes more and darkness would close in. Then the giant’s eye must begin to glow, and to wink precisely once a minute all night long. If not, what became of the keeper’s word, his faith, his honour?

No matter how the injury to the clockwork was done. No matter who was to be blamed or punished for it. That could wait. The question now was whether the light would fail or not. And it must be answered within a quarter of an hour.

That red ray of the vanishing sun was like a blow in the face to Baptiste. It stopped him short, dazed and bewildered. Then he came to himself, wheeled, and ran up the rocks faster than he had come down.

“Marie-Anne! Alma!” he shouted, as he dashed past the door of the house, “all of you! To me, in the tower!”

He was up in the lantern when they came running in, full of curiosity, excited, asking twenty questions at once. Nataline climbed up the ladder and put her head through the trap-door.

“What is it?” she panted. “What has hap—”