None of them could ever tell exactly what happened after that. Garrod did not dismount, but attempted to ride across behind the others through the narrow space between their horses and the thickly growing trees. Jack was sitting loose in his saddle with an arm extended. Suddenly his horse shrank and quivered beneath him. With a snort of pain and terror the animal sprang forward, reared on the edge of the rock, attempted desperately to turn on his hind legs—and, with his rider, disappeared.
They heard breaking branches below, and a moment later a dull crash on the rocks far beneath. No sound escaped from any member of the party. The awful silhouette of the rearing horse on the edge of nothing had frozen them into grotesque attitudes of horror, and they looked at the empty place as if they saw it still. Finally Vassall swore in a strange, soft voice, and Sir Bryson began to babble. Their horses, infected by the terror of their riders, suddenly turned of one accord, and shouldered each other off the rock to the grassy terrace at one side. Garrod slipped out of his saddle and lay inert. The horses that followed jumped over his body.
One by one the others half-rolled, half-slipped out of their saddles. Linda Trangmar was the first to reach the ground, and it was she who crawled back over the rock like a lithe little animal, and looked over the hideous edge. She saw that several spruce trees grew out obliquely from a ledge beneath the rock, and that horse and rider had fallen through the tops of these. Far below she saw the lump of dead horseflesh on the rocks. It had struck, and rolled down a steep incline to the water's edge.
The three men watched her, trembling and helpless. Sir Bryson's legs failed him, and he sat abruptly in the grass. Kate Worsley crawled toward Linda on her hands and knees, and attempted to draw her back.
"Come away, come away," she whispered. "It's too horrible!"
"Let me be!" said Linda sharply. "I haven't found him yet!"
Suddenly a piercing scream broke from Linda. Kate, by main force, snatched her back from the edge of the rock.
"He's safe!" cried Linda. She clung to Kate, weeping and laughing together.
They thought it was merely hysteria. Vassall, extending his body on the rock, looked over. He got up again, and shook his head.
High Rock was the highest point of the cliff on the side where they stood. The stretch of grass where the horses were now quietly feeding inclined gently down from the flat table.