She was bound to do good.

A marriage between his niece and Junius Keswick was the great object of the old gentleman's heart, and he longed to see the former engagement between them re-established before Roberta went to New York, where her beauty and attractiveness would expose his cherished plan to many dangers.
The road he was on led directly north, and it was joined about a quarter of a mile above by the road which ran through the woods to the Green Sulphur Springs.

On this road, at a point nearly opposite to him, he could see, through the foliage, a horseman riding toward the point of junction.

Something about this person attracted his attention, and Mr Brandon took out a pair of eye-glasses and put them on.

As soon as he had obtained another good view of the horseman he recognized him as Mr Croft.