Only it had been regarded by Mr Inspector as so uncommonly satisfactory, and so fraught with mysterious virtues, that neither of his clients had presumed to question it.

Two taps were now heard on the outside of the window. Mr Inspector, hastily fortifying himself with another glass, strolled out with a noiseless foot and an unoccupied countenance. As one might go to survey the weather and the general aspect of the heavenly bodies.

'This is becoming grim, Mortimer,' said Eugene, in a low voice. 'I don't like this.'

'Nor I' said Lightwood. 'Shall we go?'

'Being here, let us stay. You ought to see it out, and I won't leave you. Besides, that lonely girl with the dark hair runs in my head. It was little more than a glimpse we had of her that last time, and yet I almost see her waiting by the fire to-night. Do you feel like a dark combination of traitor and pickpocket when you think of that girl?'

'Rather,' returned Lightwood. 'Do you?'

'Very much so.'

Their escort strolled back again, and reported. Divested of its various lime-lights and shadows, his report went to the effect that Gaffer was away in his boat, supposed to be on his old look-out; that he had been expected last high-water; that having missed it for some reason or other, he was not, according to his usual habits at night, to be counted on before next high-water, or it might be an hour or so later; that his daughter, surveyed through the window, would seem to be so expecting him, for the supper was not cooking, but set out ready to be cooked; that it would be high- water at about one, and that it was now barely ten; that there was nothing to be done but watch and wait; that the informer was keeping watch at the instant of that present reporting, but that two heads were better than one (especially when the second was Mr Inspector's); and that the reporter meant to share the watch. And forasmuch as crouching under the lee of a hauled-up boat on a night when it blew cold and strong, and when the weather was varied with blasts of hail at times, might be wearisome to amateurs, the reporter closed with the recommendation that the two gentlemen should remain, for a while at any rate, in their present quarters, which were weather-tight and warm.

They were not inclined to dispute this recommendation, but they wanted to know where they could join the watchers when so disposed. Rather than trust to a verbal description of the place, which might mislead, Eugene (with a less weighty sense of personal trouble on him than he usually had) would go out with Mr Inspector, note the spot, and come back.

On the shelving bank of the river, among the slimy stones of a causeway--not the special causeway of the Six Jolly Fellowships, which had a landing-place of its own, but another, a little removed, and very near to the old windmill which was the denounced man's dwelling-place--were a few boats; some, moored and already beginning to float; others, hauled up above the reach of the tide. Under one of these latter, Eugene's companion disappeared. And when Eugene had observed its position with reference to the other boats, and had made sure that he could not miss it, he turned his eyes upon the building where, as he had been told, the lonely girl with the dark hair sat by the fire.

He could see the light of the fire shining through the window. Perhaps it drew him on to look in. Perhaps he had come out with the express intention. That part of the bank having rank grass growing on it, there was no difficulty in getting close, without any noise of footsteps: it was but to scramble up a ragged face of pretty hard mud some three or four feet high and come upon the grass and to the window. He came to the window by that means.

She had no other light than the light of the fire. The unkindled lamp stood on the table. She sat on the ground, looking at the brazier, with her face leaning on her hand. There was a kind of film or flicker on her face, which at first he took to be the fitful firelight; but, on a second look, he saw that she was weeping.