Vorski bent over Véronique and loosened the veil slightly. Her eyes and mouth were still concealed by their bandages. She was breathing with difficulty; the pulse was weak and slow.

"We have time," he muttered, "but we must hurry if we want her to die according to plan. In any case she doesn't seem to be in pain. She has lost all consciousness."

He put down the lantern and then softly, followed by his assistant, stole towards the white figure, both of them choosing the places where the shadow was densest.

But he soon became aware, on the one hand, that the figure, which had seemed stationary, was moving as he himself moved forward, so that the space between them remained the same, and, on the other hand, that it was escorted by a small black figure frisking by its side.

"It's that filthy mongrel!" growled Vorski.

He quickened his pace: the distance did not decrease. He ran: the figure in front of him ran likewise. And the strangest part of it was that they heard no sound of leaves disturbed or of ground trampled by the mysterious person running ahead of them.

"Damn it!" swore Vorski. "He's laughing at us. Suppose we fired at him, Conrad?"

"He's too far. The bullets wouldn't reach him."

"All the same, we're not going to . . ."

The unknown individual led them to the end of the island and then down to the entrance of the tunnel, passed close to the Priory, skirted the west cliff and reached the foot-bridge, some of the planks of which were still smouldering. Then he branched off, passed back by the other side of the house and went up the grassy slope.