"I am," replied the black.
"Come with us," commanded the centurion.
Mpingu drew back, afraid, as all men feared the soldiers of Caesar. "What do you want of me?" he demanded. "I have done nothing."
"Come, barbarian," ordered the soldier. "I was not sent to confer with you, but to get you!" And he jerked Mpingu roughly toward him and pushed him back among the soldiers.
A crowd had gathered, as crowds gather always when a man is arrested, but the centurion ignored the crowd as though it did not exist, and the people fell aside as the soldiers marched away with Mpingu. No one questioned or interfered, for who would dare question an officer of Caesar? Who would interfere in behalf of a black slave?
Mpingu thought that he would be taken to the dungeons beneath the Colosseum, which was the common jail in which all prisoners were confined; but presently he realized that his captors were not leading him in that direction, and when finally it dawned upon him that the palace was their goal he was filled with terror.
Never before had Mpingu stepped foot within the precincts of the palace grounds, and when the imperial gate closed behind him he was in a mental state bordering upon collapse. He had heard stories of the cruelty of Sublatus, of the terrible vengeance wreaked upon his enemies, and he had visions that paralyzed his mind so that he was in a state of semi-consciousness when he was finally led into an inner chamber where a high dignitary of the court confronted him.
"This," said the centurion, who had brought him, "is Mpingu, the slave of Dion Splendidus, whom I was commanded to fetch to you."
"Good!" said the official. "You and your detachment may remain while I question him." Then he turned upon Mpingu. "Do you know the penalties one incurs for aiding the enemies of Caesar?" he demanded.
Mpingu's lower jaw moved convulsively as though he would reply, but he was unable to control his voice.