"And you are--loads of time!" he called, as he ran down the river steps before her, to give the order. "It isn't two o'clock yet, and--" he paused abruptly, on seeing, to his surprise, that only Am-ma's strange craft lay sidling against the bottom step, over which little waves were curving hurriedly, to reach up the wall, as if the water-atoms were as restless as those of earth, as eager to seek a new element. For the air was growing darker, thicker every instant with the intruders. He looked round hastily, but there was no sign of the canoe anywhere. Yet he had seen it moored to its ring before dinner! Vincent must have taken it. Whither? An answer leapt to Lance's mind, and he flushed up, even in the dark, redly. If this was so--what the deuce was to be done? There was an added confusion, an added responsibility in his face as he ran back to where Erda stood waiting him, and, catching up a lamp from the mess table, started with her close at his heels for the office. "That is the first thing, anyhow!" he muttered, half to himself. "Dillon must be warned--" "And perhaps Captain Dering will be back by then," she suggested cheerfully, as, with the mess jacket worn as it should be for greater convenience of action and greater protection (she had slipped her arms into it, deliberately, while waiting for Lance), she followed in the little halo of dull, red light cast by the lamp through the dust-mist. The courtyard was still without sign of life; for there was nothing to guard here. The massive gates of the citadel once closed, and a sentry outside the wicket, there could be no fear of secret comings and goings. "I hope to God he may," said Lance, ahead, and his tone made the girl wonder. His face, too, surprised her, as, sitting down to the instrument, he signalled for attention. No doubt when time is an object, there must always be a sense of strain in that pause before the answering tinkle comes to tell that a human hand and brain is at the other end of the thin wire which means so much, but there was more than that in Lance Carlyon's frown. In truth, as he waited, he was not thinking so much of what would happen if the communication was interrupted, but what was to be done if it was not. Thinking that he must, somehow, warn Vincent. Thinking how awkward it would be for _him_ if there was a row, and he absent, as it were, without leave! So it was Erda who recalled him to the wider issue. "What are you going to do, if Dr. Dillon doesn't hear?" She had to raise her voice a little, for something--either coming wind or far-distant thunder--had brought a curious, faint reverberation to the air. It seemed to come from all quarters, scarcely distinguishable, yet unmistakable, like the roll of a half-muffled drum, or a deep organ note quivering into silence.