The great thing is to have me under lock and key.

For it does lock; it is locked now,' said I, trying the door.

'_A propos_, what have you for a cargo?
It must be precious.' He found not a word to answer.
Rat-tat-tat, I went upon the door like a well-drilled footman.
'Any one at home ?' I said, and stooped to listen.
There came out of the interior a stifled sneeze, the first of an uncontrollable paroxysm; another followed immediately on the heels of it; and then the driver turned with an oath, laid the lash upon the horses with so much energy that they found their heels again, and the whole equipage fled down the road at a gallop.
At the first sound of the sneeze, I had started back like a man shot.
The next moment, a great light broke on my mind, and I understood.

Here was the secret of Fenn's trade: this was how he forwarded the escape of prisoners, hawking them by night about the country in his covered cart.
There had been Frenchmen close to me; he who had just sneezed was my countryman, my comrade, perhaps already my friend! I took to my heels in pursuit.

'Hold hard!' I shouted.