If she is anywhere near, she will be sure to hear the dog.

From the noise he is making she will deduce burglars and return to protect her property.

As a man-hater she will have no fear of a mere burglar.

Luckily for us, that dog has a carrying voice!" Scarcely had he spoken than the dog ceased to bark.
"Shall I go and throw sticks at it ?" asked Esther helpfully.
"Hush! The dog must have heard something.

Let's listen!" In the silence they listened intently.