"That is all," said the official to the centurion. "Take him away and keep him under guard until you receive further orders. Be sure that he talks to no one."

A few minutes later the official who had interrogated Mpingu entered the apartment of Sublatus, while the Emperor was in conversation with his son Fastus.

"I have located the white barbarian, Sublatus," announced the official.

"Good!" said the Emperor. "Where is he?"

"In the home of Maximus Praeclarus."

"I might have suspected as much," said Fastus.

"Who else is implicated?" asked Sublatus.

"He was caught in the courtyard of Dion Splendidus," said Fastus, "and the Emperor has heard, as we all have, that Dion Splendidus has long had eyes upon the imperial purple of the Caesars."

"The slave says that only Maximus Praeclarus is responsible for the escape of the barbarian," said the official.

"He was one of Dion Splendidus's slaves, was he not?" demanded Fastus.