"We'll certainly give them a warm reception," rejoined Glenarvan.

His Lordship only spoke thus to reassure the child, for a secret terror filled him at the sight of this legion of bloodthirsty animals let loose on them at midnight.

There might possibly be some hundreds, and what could three men do, even armed to the teeth, against such a multitude?

As soon as Thalcave said the word AGUARA, Glenarvan knew that he meant the red wolf, for this is the name given to it by the Pampas Indians. This voracious animal, called by naturalists the _Canis jubatus_, is in shape like a large dog, and has the head of a fox. Its fur is a reddish-cinnamon color, and there is a black mane all down the back. It is a strong, nimble animal, generally inhabiting marshy places, and pursuing aquatic animals by swimming, prowling about by night and sleeping during the day. Its attacks are particularly dreaded at the ESTANCIAS, or sheep stations, as it often commits considerable ravages, carrying off the finest of the flock. Singly, the AGUARA is not much to be feared; but they generally go in immense packs, and one had better have to deal with a jaguar or cougar than with them.