She led the way to the stables. The men in charge had gone to bed. She and Thorpe saddled two strong mustangs, rode rapidly down the avenue and out into the high road. For some time they followed the stage-route, then struck into a side road leading to the mountains. Nina did not speak, nor did Thorpe. He was thankful for the respite. Once he touched his cheek mechanically, wondering if it had fallen into wrinkles. They rode at a break-neck pace. The night had become very dark: a great ocean of fog had swept in from the Pacific, blotting out mountains and stars. The mustangs moderated their pace as they began to ascend the foot-hills. The long rush through the valley had quickened Thorpe's blood without calming his brain. He did not speak. There seemed to be a thousand words struggling in his brain, but they would not combine properly. He could have cursed them free, but although he was too bitter and excited to have tenderness or pity for the woman beside him, he considered her in a half blind way; she was the one woman on earth who had ever sent him utterly beside himself. They ascended, two black spots of shifting outline in the fog, for an hour or more. Neither below nor above could an object be seen, not a sound came to them. It was unreal, and ghostly, and portentous. Then, almost abruptly, they emerged, the mustangs trotting on to the flat summit of a hill. Nina sprang to the ground. "Tie the horses," she said; and Thorpe led them to a tree some yards away. Nina stood with her back to him, her hands hanging listlessly at her sides, looking downward. Thorpe, after he had tethered the horses, paused also. The world below was gone. In its place was a vast ocean of frothy milk-white fog. On each side, melting into the horizon in front, until it washed the slopes of the Contra Costa range, lay this illimitable ocean pillowed lightly on sleeping millions. Now calm and peaceful, now distorted in frozen wrath, it was so shadowy, so unreal, that a puff of wind might have blown it to the stars. Out of it rose the hill-tops, bare weather-beaten islands. Against them the sea had hurled itself, then clung, powerless to retreat. Upon some it had cast its spray half way to the crest, over others it rushed in mighty motionless torrents; here and there it but half concealed the jagged points of ugly rocks. Beating against solitary reefs were huge, still, angry breakers, sounding no roar. A terrible death-arrested storm was there in mid-ocean,--a storm which appalled by its very silent wrath. On one of the highest and barest of the crags an old building looked, in that sunless light, like a castle in ruin. Above, the cold blue sky was thickly set with shivering stars. The grinning moon hung low.