Even a mongrel puppy could have followed it.

Oblivious to all else, Lad broke into a canter; nose still close to earth; pleasurably excited and keenly inquisitive.
He ran along the private road for perhaps a hundred yards.

Then, he wheeled in at another paved walk and ran up a low flight of veranda steps.

The front door of a house stood invitingly open to the cool air of the morning.

In through the doorway went Lad; unheeding the gobbling call of a maid-servant who was sweeping the far end of the veranda.
Lad did not know he was committing trespass.