For we had no stomach for the road to Aquileia, if in such company that we
must present ourselves before Vedius as claiming to be slaves of his.

We escaped easily enough, just after crossing the Po, by sneaking off in
the darkness from a villa where Cornelius, stopped overnight with a
friend. Without any difficulty we recrossed the Po, not far below
Hostilia, and from there made for Parma.

For we agreed that, after our story to Tarrutenus, with Cornelius Vindex
in Aquileia, Aquileia would be no fit bourne for us. So we decided, after
all, to risk the highway from Parma to Dertona and from there make our way
across the Ligurian Mountains to Vada Sabatia and from there along the
highway to Marseilles, where we should be able to hide in the slums among
the mixture of all races in that lively city; and where Agathemer was sure
he could turn gems into cash without danger or suspicion.

All, went well with us till we reached Placentia. There we put up at an
inn. As we were leaving the town next morning, when we were about half way
from the inn to the Clastidian Gate, Agathemer gripped my arm and motioned
me up a side street. We walked with every indication of leisurely
indifference until we had taken several turns and were alone in a narrow
street. Then he told me that we had barely missed coming face to face with
Gratillus himself.

This barely missed encounter with one of the most dreaded of the Emperor's
spies, a man who knew me perfectly and who had always disliked me, so
terrified both of us that we left Placentia by the Nuran Gate and made our
way southwestward into the Apennines.

Once in the mountains we avoided every good road we saw and kept to bad
byways, until we were completely lost.

CHAPTER XVI

THE CAVE

The late spring or early summer weather was hot and clear. We had been
pressing on feverishly and were heated, tired and sleepy, when, while
following a faint track through dense woods, we took a wrong turn and soon
found that we had utterly lost our way. The sunlight was intensely
brilliant and the windless air sweltering. Stumbling over rocks and
through bushes was exhausting. We came upon a little spring and quenched
our thirst. Standing by it and staring about we noticed what looked like
an opening in an inconspicuous vine-clad cliff. It was, in fact, the
entrance to a spacious and, apparently, extensive cave.

The outer opening was about the size of an ordinary door. Though it was
well