But, to her utter astonishment, when she had climbed to the top, he was not in sight. The hill brow apparently commanded a view of the surrounding country for a distance of at least two miles, and as far as she could see there was no sign of any living creature in the whole expanse. Hardly believing her own senses, she brushed her hand across her eyes and looked again. But she had made no mistake. Tony was nowhere to be seen. The ground stretched bleakly away on every hand, untenanted by any human soul except herself. She stood still, staring dazedly around. Tony would never have gone back without her. He must be hidden from view by some dip or inequality of the ground. Or--her heart stood still at the thought--had he slipped and fallen headlong into some hideous crevasse? Curving her hands on either side her mouth, she called him, sending her voice ringing through the clear, crisp air. But there came no answer. Instead, the utter loneliness and silence seemed to surge up round her almost like a concrete thing. For a moment, sheer terror of what might have happened to him overwhelmed her. "Tony!... Tony!" Her voice rose to a scream, then cracked on a hoarse note of sudden, desperate relief. To her left the ground fell away abruptly in a precipitous ravine, and, rising slowly above the lip of the chasm, she could discern Tony's head and shoulders. Instantly her mind leapt to what had happened. Failing to find a gentian in his search over safe ground, he must have caught sight of a late blossom growing in some cranny of the rock face below, and, recklessly regardless of the danger, he had climbed down to secure it. The mere thought of the risk he had incurred--was still incurring--sent a shiver through her. Her first impulse was to rush towards him. Then, realising that any movement of hers might distract his attention and so add illimitably to his danger, she forced herself by an almost superhuman effort to remain where she was. Motionless, with straining eyes, she watched while he slowly edged himself up. That his foothold was precarious was evident from the careful precision of his movements, so unlike Tony's usual nimbleness. Now his arm was above the edge ... both arms ... he seemed to be resting a moment, leaning on his chest an instant before making another effort. Should she go to him? Her arms hung stiffly at her sides, her hands opening and shutting in an agony of indecision. Tony was moving once more, and this time he hoisted himself up so that he succeeded in getting one knee over the top. Another moment and he would be safe.... Then, without a cry, he suddenly toppled backwards and disappeared from view, and Ann could see only the jagged edge of the ravine, stark against the sky-line. For a fraction of a second she stood paralysed, overwhelmed with the horror of what had happened. Then, choking back the scream which rose to her lips, she set off running in the direction of the spot where Tony had vanished from sight.