They waded amid long coarse grass and thistle to the bank of the moat which ran in a ribbon of black with dead leaves and scum upon it, like ebony inlaid with a pattern of gold. Barely a yard or two beyond the black ribbon was the other green bank and the big stone pillars of the gateway. But so little, it would seem, had this lonely fastness been approached from outside that when the impatient Granby halloed across to the dim figures behind the portcullis, they seemed, to have considerable difficulty even in lowering the great rusty drawbridge. It started on its way, turning over like a great falling tower above them, and then stuck, sticking out in mid-air at a threatening angle.

The impatient Granby, dancing upon the bank, called out to his companion:

"Oh, I can't stand these stick-in-the-mud ways! Why, it'd be less trouble to jump."

And with characteristic impetuosity he did jump, landing with a slight stagger in safety on the inner shore. Father Brown's short legs were not adapted to jumping. But his temper was more adapted than most people's to falling with a splash into very muddy water. By the promptitude of his companion he escaped falling in very far. But as he was being hauled up the green, slimy bank, he stopped with bent head, peering at a particular point upon the grassy slope.

"Are you botanizing?" asked Granby irritably. "We've got no time for you to collect rare plants after your last attempt as a diver among the wonders of the deep. Come on, muddy or no, we've got to present ourselves before the baronet."

When they had penetrated into the castle, they were received courteously enough by an old servant, the only one in sight, and after indicating their business were shown into a long oak-panelled room with latticed windows of antiquated pattern. Weapons of many different centuries hung in balanced patterns on the dark walls, and a complete suit of fourteenth-century armour stood like a sentinel beside the large fireplace. In another long room beyond could be seen, through the half-open door, the dark colours of the rows of family portraits.

"I feel as if I'd got into a novel instead of a house," said the lawyer. "I'd no idea anybody did really keep up the 'Mysteries of Udolpho' in this fashion."

"Yes; the old gentleman certainly carries out his historical craze consistently," answered the priest; "and these things are not fakes, either. It's not done by somebody who thinks all mediæval people lived at the same time. Sometimes they make up suits of armour out of different bits; but that suit all covered one man, and covered him very completely. You, see it's the late sort of tilting-armour."

"I think he's a late sort of host, if it comes to chat," grumbled Granby. "He's keeping us waiting the devil of a time."

"You must expect everything to go slowly in a place like this," said Father Brown. "I think it's very decent of him to see us at all: two total strangers come to ask him highly personal questions."