The sun sank while they stared at each other. Flakes of purple darkness seemed to scale away from the side of the crag whose crest still glowed faintly red. It would be night here shortly. Deep-water Peter gave a great sigh, fumbled with his package, and next the string of pearls swayed from his finger.

"Yours," he uttered, holding them toward her.

Silence intervened. A slaty cloud raised its head in the east, and against that her siren's face was pale. Her blue eyes burned on the gems with a strange and haunted light. There was wickedness here, she mistrusted, but how could it touch her?

Peter came toward her, bent over her softly as that shadow in whose violet folds they were wrapped deeper moment by moment. His fingers trembled at the back of her neck and could not find the clasp. Her damp body held motionless as stone under his attempt.

"It is done," he cried, hoarsely.

She sprang free of him on the instant.

"Is this all my thanks?" Peter muttered.

She stooped mischievously and dropped a handful of shells deftly on the sand, one by one. Peter, stooping, read what was written there; he cried for joy, and crushed her in his arms, as little Rackby had crushed her mother, once, under the Preaching Tree.

A strong shudder went through her. The yellow hair whipped about her neck. Then for one instant he saw her eyes go past him and fix themselves high up at the top of that crag. Peter loosened his hold with a cry almost of terror at the light in those eyes. He thought he had seen Cad Sills staring at him.

There was no time to verify such notions. Day Rackby had seen Jethro on his knees, imploring her, voicelessly, with his mysterious right reason, which said, plainer than words, that the touch of Peter's lips was poison to her soul. It seemed to Jethro in that moment that a ringing cry burst from those dumb lips, but perhaps it was one of the voices of the surf. The girl's arms were lifted toward him; she whirled, thrust Peter back, and fled over soft and treacherous hassocks of the purple weed. In another instant she flashed into the dying light on the sea beyond the headland, poised.