But then, who were these new invaders, and by what out-of-the-way path across the steppe had they been able to join the highroad to Irkutsk?
Baina, orduan, zein ziren, bada, beste inbaditzaile hauek, eta esteparen zein bide ezkututan barrena iritsi ziren Irkutskeko bide nagusira?