But ere he had ventured forth from his hiding-place, he heard again the swallow's twitter, louder than before, and evidently meant for his ear. Could it be a natural echo or his own disordered fancy which caused a whistle exactly similar to reach him from the exact locality he meant to search?

Rollo moved to that extremity of the thicket from whence the more regular gardens were visible. He concealed himself behind a pomegranate tree, and, while he stood and listened, mellow and clear the call came again from the vicinity of the waterfall.

But Rollo was not of those who turn back. Good-byes are difficult things to say twice within the same half-hour. No, he had burnt his boats and would rather go forward into the camp of a thousand gipsies than climb up the vine-stem and face the Sergeant and Concha with his task undone. Shame of this kind has often more to do with acts of desperate courage than certain other qualities more besung by poets.

It was obvious, therefore, that the gipsies were still within the enclosure of the palace, so Rollo gave up the idea of keeping straight up the little artificial rivulet, whose falls gleamed wanly before him, each square and symmetrical as a flag hung out of the window on a still day.

To the left, however, there were thickets of red geranium, the Prince's Flower of Old Castilian lore, five or six feet high. Among these Rollo lost himself, passing through them like a shadow, his head drooped a little, and his knife ready to his hand.

When he was halfway along the edge of the royal demesne he saw across the open glade a strange sight, yet one not unwelcome to him.

The palace storehouses had been broken into. Lights moved to and fro from door to door, and above from window to window. A train of mules and donkeys stood waiting to be loaded. Thieves' mules they were, without a single bell or bit jingling anywhere about their accoutrements.

Then Rollo understood in a moment why no further attack had been made upon the palace. To the ordinary gipsy of the roads and hills—half smuggler, half brigand, the stores of Estramenian hams, the granaries full of fine wheat of the Castiles, of maize and rice ready to be loaded upon their beasts, were more than all possible revenges upon queens and grandees of Spain.

In losing the daughter of Muñoz they had lost both inspiration and cohesion, and now the natural man craved only booty, and that as plentifully and as safely as possible. So there in the night torches were lighted, and barn and byre, storehouse and cellar were ransacked for those things which are most precious to men gaunt and lantern-jawed with the hunger of a plague-stricken land.

After this discovery the young Scot moved much more freely and fearlessly. For it explained what had been puzzling him, how it came about that so far no sustained or concerted attack had been made upon the palace.