A voice from behind whispered distinctly in my ear, "You are in danger in this city."-- I turned round, as if mechanically.
One or two starched and ordinary-looking mechanics stood beside and behind me,--stragglers, who, like ourselves, had been too late in obtaining entrance.

But a glance at their faces satisfied me, though I could hardly say why, that none of these was the person who had spoken to me.

Their countenances seemed all composed to attention to the sermon, and not one of them returned any glance of intelligence to the inquisitive and startled look with which I surveyed them.

A massive round pillar, which was close behind us, might have concealed the speaker the instant he uttered his mysterious caution; but wherefore it was given in such a place, or to what species of danger it directed my attention, or by whom the warning was uttered, were points on which my imagination lost itself in conjecture.

It would, however, I concluded, be repeated, and I resolved to keep my countenance turned towards the clergyman, that the whisperer might be tempted to renew his communication under the idea that the first had passed unobserved.
My plan succeeded.