Having no part of the little one's clothing to help, he was without the clew which would appear to be indispensable.
His master, however, was satisfied the dog had struck the right trail.
"Stick to it, Nero," said Hugh, encouragingly, "not too fast, but be sure you're right." Without pause, the two followed the dog, Hugh in front with lantern in hand.

The woods were so cluttered with undergrowth that they could not go fast, seeing which Nero suited his pace to theirs.

Now and then he ran ahead, as if impatient with the slow progress of the couple, and then he calmly awaited their approach.
"Hark!" The single word "_Dollie_!" rang through the arches of the woods.

They recognized the voice as that of the superintendent, who was hurrying over the path they had left, and who was not far away.

In fact, Hugh held the lantern in front of him so as to hide its rays.
"I am sorry for him," he said, "but we don't want him with us." "It cannot be," remarked Tom, after they had struggled further, "that she has gone as far as this; Nero must be off the track." At this moment the dog emitted a low, baying whine that would have startled any one had he not known its meaning.