IT was fortunate that Michael Strogoff had left the posting-house so promptly.

The orders of Ivan Ogareff had been immediately transmitted to all the approaches of the city, and a full description of Michael sent to all the various commandants, in order to prevent his departure from Omsk.

But he had already passed through one of the breaches in the wall; his horse was galloping over the steppe, and the chances of escape were in his favor.
It was on the 29th of July, at eight o'clock in the evening, that Michael Strogoff had left Omsk.

This town is situated about halfway between Moscow and Irkutsk, where it was necessary that he should arrive within ten days if he wished to get ahead of the Tartar columns.

It was evident that the unlucky chance which had brought him into the presence of his mother had betrayed his incognito.