Twenty of them are used in the traces.

The others are my companions--my bodyguard, I call them." Metoosin approached them now, weighted down under a heavy load in a gunny-sack, and Philip believed that he recognized in the silent Indian the man whom he had first seen at the door of Adare House with a rifle in his hands.

At a few commands from Josephine the dogs gathered about them, and Metoosin opened the bag.
"I want you to throw them the fish, Philip," said Josephine.

"Their brains comprehend the hand that feeds them.

It is a sort of pledge of friendship between you and them." With Metoosin she drew a dozen steps back, and Philip found that he had become the centre of interest for the pack.