"How did he come into Castrum Mare and none of my officers report the matter to me?" asked Validus.

"That you may learn from Mallius Lepus," said Fulvus Fupus, "for Mallius Lepus was in command of the Porta Decumana when some of the barbarians of the lake villages brought him there, presumably a prisoner, yet Caesar knows how easy it would have been to bribe these creatures to play such a part."

"You explain it so well, Fulvus Fupus," said the Emperor, "that one might even suspect you to have been the instigator of the plot, or at least to have given much thought to similar schemes."

"Caesar's ever brilliant wit never deserts him," said Fupus, forcing a smile, though his face paled.

"We shall see," snapped Validus, and turning to one of his officers, "Order the arrest of Septimus Favonius, and Mallius Lepus and this stranger at once."

As he ceased speaking a chamberlain entered the garden and approached the Emperor. "Septimus Favonius requests an audience," he announced. "Mallius Lepus, his nephew, and a stranger are with him."

"Fetch them," said Validus, and to the officer who was about to depart to arrest them, "Wait here. We shall see what Septimus Favonius has to say."

A moment later the three entered and approached the Emperor. Favonius and Lepus saluted Validus and then the former presented von Harben as a barbarian chief from Germania.

"We have already heard of this barbarian chief," said Validus, with a sneer. Favonius and Lepus glanced at Fupus. "Why was I not immediately notified of the capture of this prisoner?" This time the Emperor directed his remarks to Mallius Lepus.

"There has been little delay, Caesar," replied the young officer. "It was necessary that he be bathed and properly clothed before he was brought here."