Quotation from: The Gods of Mars

Written by: Edgar Rice Burroughs

He was about to reply when the outer door of our prison opened and
a burly guard entered and ordered him to his own quarters for the
night, locking the door after him as he passed through into the
further chamber.

"It is Issus' wish that you two be confined in the same room," said
the guard when he had returned to our cell. "This cowardly slave
of a slave is to serve you well," he said to me, indicating Xodar
with a wave of his hand. "If he does not, you are to beat him
into submission. It is Issus' wish that you heap upon him every
indignity and degradation of which you can conceive."