Frank obeyed his companion, and they walked on, seeing no one in particular, save an elderly man with a very bad cough, who stopped from time to time to rest upon his crutch-handled stick, and indulge in a long burst of coughing, interspersing it with a great many “Oh dears!” and groans. They left him behind, as they passed the last tall house, where Frank shuddered as he saw the upright leaden stack, the hole in the parapet, where the rope was tied, and the garden beneath.

The boy turned hot as he went over the whole adventure again and thought the same thoughts. Then he glanced sharply through the iron railings in search of footmarks, but saw none, for Andrew uttered a warning “Take care,” and he looked straight before him again as he went out by the Park gate, and turned back and through the streets till they reached the front of the house, where men were nailing up boards, and a couple of soldiers stood on duty, marching up and down, as if some royal personage were within.

Frank glanced at the workmen, and would have increased his pace, but Andrew had hold of his arm and kept him back.

“Don’t hurry,” he said quietly; and then lightly to one of the sentries, “Got some prisoners inside, my man?”

The sentry grinned, and gave his head a side wise nod toward Frank.

“Ask this young gentleman, sir; he knows.”

Frank flushed scarlet, as he turned sharply to the man, whom he now recognised as one of the Guards who entered the drawing-room with the officer.

“Ah, to be sure,” said Andrew coolly; and nodding carelessly, he went on and out by the gate into the Park at the end of the street, where the old man they had previously seen was holding on by the railings coughing violently.

“Poor old gentleman!” said Andrew sarcastically, but loud enough for him to hear; “he seems to be suffering a good deal from that cough.”

The man bent his head lower till his brow rested on the hand which held on by the railings, and coughed more than ever.