At ten o'clock Steamboat Dan was to show a momentary light in the mouth of the drain. This would be the signal for the _Zulu Queen_ to send her launch ashore and begin taking the gold aboard. Storri programmed his own appearance at the drain for sharp ten. As he left the water-front, following the appearance of the _Zulu Queen_, he cast his eye hopefully upward at the threatening clouds; a down-pouring storm would be the thing most prayed for. Until it was time to start for the drain to oversee the transfer of the gold, Storri would remain with the San Reve. He was none too confident of the San Reve; of late she had been too silent, too sad, too much wrapped in thought. And this was the night of nights upon which Storri must be sure. In favor of his own security, Storri must know to a verity both the temper and the whereabouts of the San Reve. Five minutes before Storri reached Grant Place, the rain fell in a deluge. The San Reve, more fortunately swift, was home in advance of the rain and came in bone-dry. When Storri arrived, his garments streaming water, she wore the look of one who had not been out of the house for an afternoon. Only, if Storri had observed the San Reve's eyes, and added their expression, so strangely reckless yet so resolved, to the set mouth and that marble pallor of her brow, the result might have sickened his assurance. Having in mind his soaked condition, Storri called for whisky. The San Reve was good enough to pour him a stiff glass, which he drank raw with the harsh appetite of a Russian. There was the ghost of an odor of sleep about that whisky; but the sleep-specter did not appeal to Storri, who tossed off his drink and followed one dram with another, suspecting nothing. Five minutes later he was drowsing stertorously on a lounge. The San Reve, white, and wild in a manner passive and still, had spoken no word; she attended Storri's wants in silence. When that sudden weariness came to claim him and he cast himself in slumber upon the couch, the San Reve, from where she stood statue-like in the center of the room, bent upon him her gray-green eyes. She stood thus for a space, then the slow tears began to stain her cheeks. She threw herself down beside Storri, kissed him and drew his head to her bosom, crying hopelessly. Richard had been requested by Inspector Val to meet him at the south front of the Treasury Building at ten o'clock. "Do you remember," asked Inspector Val, "how several weeks ago we visited the drain?" Yes; Richard recalled it. "Come with me to-night," said Inspector Val; "the drain shall explain the mystery of that muddy water, and why I said our man was hard at work."