But Caracalla furiously broke in:

"And woe to you if your god refuses me the only thing I crave in return
for so many sacrifices--revenge, complete and sanguinary; atonement from
great and small alike!" But he interrupted himself with the exclamation:
"He grants it! Now for the tool I need."

The tool was ready--Zminis, the Egyptian, answering in every particular
to the image which Caracalla had had in his mind of the instrument who
might execute his most bloodthirsty purpose.

With hair in disorder and a blue-black stubble of beard on his haggard
yellow cheeks, in a dirty gray prison shirt, barefoot, and treading as
silently as Fate when it creeps on a victim, the rascal approached his
sovereign. He stood before Caracalla exactly as the prefect, in a swift
chariot, had brought him out of prison. The white of his long, narrow
eyes, which had so terrified Melissa, had turned yellow, and his glance
was as restless and shifting as that of a hyena. His small head on its
long neck was never for a moment still; the ruthless wretch had sat
waiting day after day in expectation of death, and it was by a miracle
that he found himself once more at the height of his ambition. But when
at last he inquired of Caracalla, in the husky voice which had gained an
added hoarseness from the damp dungeon whence he had been brought, what
his commands were, looking up at him like a starving dog which hopes for
a titbit from his master's hand, even the fratricide, who himself held
the sword sharpened to kill, shuddered at the sight and sound.

But Caesar at once recovered himself, and when he asked the Egyptian:

"Will you undertake to help me, as captain of the night-watch, to punish
the traitors of Alexandria?" the answer was confident:

"What man can do, I can do."

"Good!" replied Caracalla. "But this is not a matter of merely capturing
one or another. Every one--mark me--every one has merited death who has
broken the laws of hospitality, that hospitality which this lying city
offered me. Do you understand? Yes? Well, then, how are we to detect the
guilty? Where are we to find spies and executioners enough? How can we
punish worst those whose wickedness has involved the rest in guilt,
especially the epigramatists of the Museum? How are we to discover the
ringleaders of those who insulted me yesterday in the Circus, and of
those among the youths in the stadium who have dared to express their
vile disapproval by whistling in my very