"How came _you_ to seal her Ladyship's letter--eh ?" The question bore no sort of relation, direct or indirect, to what Isabel happened to be saying at the moment.

In the sudden surprise of hearing it, she started and fixed her eyes in astonishment on Sharon's face.

The old vagabond chuckled to himself.

"Did you see that ?" he whispered to Moody.

"I beg your pardon, miss," he went on; "I won't interrupt you again.