Perfect silence now reigned on board the raft. The voices of the pilgrims were no longer heard. They still prayed, but their prayer was but a murmur, which could not reach as far as either bank. The fugitives lay flat on the platform, so that the raft was scarcely above the level of the water. The old boatman crouched down forward among his men, solely occupied in keeping off the ice blocks, a maneuver which was performed without noise. The drifting of the ice was a favorable circumstance so long as it did not offer an insurmountable obstacle to the passage of the raft. If that object had been alone on the water, it would have run a risk of being seen, even in the darkness, but, as it was, it was confounded with these moving masses, of all shapes and sizes, and the tumult caused by the crashing of the blocks against each other concealed likewise any suspicious noises. There was a sharp frost. The fugitives suffered cruelly, having no other shelter than a few branches of birch. They cowered down together, endeavoring to keep each other warm, the temperature being now ten degrees below freezing point. The wind, though slight, having passed over the snow-clad mountains of the east, pierced them through and through. Michael and Nadia, lying in the afterpart of the raft, bore this increase of suffering without complaint. Jolivet and Blount, placed near them, stood these first assaults of the Siberian winter as well as they could. No one now spoke, even in a low voice. Their situation entirely absorbed them. At any moment an incident might occur, which they could not escape unscathed. For a man who hoped soon to accomplish his mission, Michael was singularly calm. Even in the gravest conjunctures, his energy had never abandoned him. He already saw the moment when he would be at last allowed to think of his mother, of Nadia, of himself! He now only dreaded one final unhappy chance; this was, that the raft might be completely barred by ice before reaching Irkutsk. He thought but of this, determined beforehand, if necessary, to attempt some bold stroke.