It happened more than five hundred years ago, when this castle was new and strong, and people lived and thought in very different sort from what they do now. Among the young men of that time there was none more noble than Aubrey de Montdidier, the nephew of the Count of Montargis; and among all the knights who had favor at the royal court, there was none more brave than the young Sieur de Narsac, captain of the king’s men at arms.

Now these two men were devoted friends, and whenever their other duties allowed them, they were sure to be in each other’s company. Indeed, it was a rare thing to see either of them walking the streets of Paris alone.

“I will meet you at the tournament to-morrow,” said Aubrey gayly, one evening, as he was parting from his friend.

“Yes, at the tournament to-morrow,” said De Narsac; “and be sure that you come early.”

The tournament was to be a grand affair. A gentleman from Provence was to run a tilt with a famous Burgundian knight. Both men were noted for their horsemanship and their skill with the lance. All Paris would be out to see them.

When the time came, De Narsac was at the place appointed. But Aubrey failed to appear. What could it mean? It was not at all like Aubrey to forget his promise; it was seldom that he allowed anything to keep him away from the tournament.

“Have you seen my friend Aubrey to-day?” De Narsac asked this question a hundred times. Everybody gave the same answer, and wondered what had happened.

The day passed and another day came, and still there was no news from Aubrey. De Narsac had called at his friend’s lodgings, but could learn nothing. The young man had not been seen since the morning before the tournament.

Three days passed, and still not a word. De Narsac was greatly troubled. He knew now that some accident must have happened to Aubrey. But what could it have been?

Early in the morning of the fourth day he was aroused by a strange noise at his door. He dressed himself in haste and opened it. A dog was crouching there. It was a greyhound, so poor that its ribs stuck out, so weak that it could hardly stand.