"Marvellous horsemanship," exclaimed Hardinge with enthusiasm. "The
animal must be an Arabian or some other thoroughbred. Whose can he be?
There is no such horse in these parts or I should have known it. And yet
it is hardly possible that he should have come along with Arnold's
expedition."

"And the rider?" murmured Pauline, advancing several steps in the
earnestness of her gaze.

"Yes, the rider," continued Roderick. "See he lives in the horse and the
horse in him. They seem to form part and parcel of one another. A
magnificent fellow."

"Impossible," said Pauline, shading her eyes with her hand to sharpen
her vision. "It cannot be."

"What?" queried Roderick.

"I thought perhaps...."

"But it is, Pauline."

"You don't mean it?"

"It is no other."

"Cary Singleton!"

Forgetful of everything, in her transport, she applauded with her gloved
hands. Roderick took off his cap and saluted.

"This is a brave sight, Pauline, and well worth our coming thus far to
see."

The girl was silent, and when at length she diverted her eyes, it was
not to encounter those of her companion. A slight trouble arose within
her which might have increased into an embarrassment, had not another
incident almost immediately occurred to give distraction.

The rider, having finished his gyrations, returned to his friends, who
after a brief parley dispersed, leaving him alone with a small group of
two or three, among whom appeared to be a lady on horseback. At least,
so thought both Roderick and Pauline. They did not mind the
circumstance, however, and were on the point of retracing their steps
homeward, when they noticed that two riders detached themselves from the
rest and took the direction of the plain. It was easy to recognize Cary
Singleton, and, in a few moments, as easy to see that he was accompanied
by a lady. The twain went along at a gentle walk directly towards the
St. Lawrence. The sun was still shining brightly, and as they rode, they
were sometimes in light and sometimes in shadow, according as they
passed the leafless maples that skirted the path. When they reached the
high bank overlooking the river, they stopped for a few moments in
conversation, Singleton evidently describing something, as indicated by
the movement of his arm along the line of the stream and again in the
direction of the town.

While they were thus engaged, the couple on the Citadel watched them
closely without uttering a word. The reader w