The snow stung his face — it was hardly likely there would be anyone in the town to observe them on a night like this.
Certainly the boat must have come down the river faster than the plodding horses of the gendarmes whom Caillard had sent ahead.
A new roaring of water caught his ear, different in timbre from the sound of a rapid.
He craned round again to see the bridge before them silhouetted in white against the blackness by reason of the snow driven against the arches.
He tugged wildly, first at one scull and then at both, heading for the centre of an arch; he felt the bow dip and the stern heave as they approached — the water was banked up above the bridge and rushed down through the arches in a long sleek black slope.
As they whirled under Hornblower bent to his sculls, to give the boat sufficient way to carry her through the eddies which his seaman's instinct warned him would await them below the piers.
The crown of the arch brushed his head as he pulled — the floods had risen as high as that.
The sound of rushing water echoed strangely under the stonework for a second, and then they were through, with Hornblower tugging madly at the sculls.
One more light on the shore, and then they were in utter blackness again, their sense of direction lost.
"Christ!" said Bush again, this time with utter solemnity, as Hornblower rested on his sculls.
The wind shrieked down upon them, blinding them with snow.
From the bows came a ghostly chuckle.
"God help sailors," said Brown, "on a night like this."
"Carry on with the bailing, Brown, and save your jokes for afterwards," snapped Hornblower.
But he giggled, nevertheless, even despite of the faint shock he experienced at hearing the lower deck cracking jokes to a captain and a first Lieutenant.
His ridiculous habit of laughing insanely in the presence of danger or hardship was already ready to master him, and he giggled now, while he dragged at the oars and fought against the wind — he could tell by the way the blades dragged through the water that the boat was making plenty of leeway.
He only stopped giggling when he realized with a shock that it was hardly more than two hours back that he had first uttered the prayer about God helping sailors on a night like this.
It seemed like a fortnight ago at least that he had last breathed the leathery stuffiness of the inside of the coach.
The boat grated heavily over gravel, caught, freed itself, bumped again, and stuck fast.
All Hornblower's shoving with the sculls would not get her afloat again.
"Nothing to do but shove her off," said Hornblower, laying down his sculls.
He stepped over the side into the freezing water, slipping on the stones, with Brown beside him.
Between them they ran her out easily, scrambled on board, and Hornblower made haste to seize the sculls and pull her into the wind.
Yet a few seconds later they were aground again.
It was the beginning of a nightmare period.
In the darkness Hornblower could not guess whether their difficulties arose from the action of the wind in pushing them against the bank, or from the fact that the river was sweeping round in a great bend here, or whether they had strayed into a side channel with scanty water.
However it was, they were continually having to climb out and shove the boat off.
They slipped and plunged over the invisible stones; they fell waist deep into unseen pools, they cut themselves and bruised themselves in this mad game of blind man's buff with the treacherous river.
It was bitterly cold now; the sides of the boat were glazed with ice.
In the midst of his struggles with the boat Hornblower was consumed with anxiety for Bush, bundled up in cloak and blankets in the stern.
"How is it with you, Bush?" he asked.
"I'm doing well, sir," said Bush.
"Warm enough?"
"Aye aye, sir.
I've only one foot to get wet now, you know, sir."
He was probably being deceitfully cheerful, thought Hornblower, standing ankle deep in rushing water and engaged in what seemed to be an endless haul of the boat through invisible shallows.
Blankets or no blankets, he must be horribly cold and probably wet as well, and he was a convalescent who ought to have been kept in bed.
Bush might die out here this very night.
The boat came free with a run, and Hornblower staggered back waist deep in the chill water.
He swung himself in over the swaying gunwale while Brown, who apparently had been completely submerged, came spluttering in over the other side.
Each of them grabbed a scull in their anxiety to have something to do while the wind cut them to the bone.
The current whirled them away.
Their next contact with the shore was among trees — willows, Hornblower guessed in the darkness.
The branches against which they scraped volleyed snow at them, scratched them and whipped them, held the boat fast until by feeling round in the darkness they found the obstruction and lifted it clear.
By the time they were free of the willows Hornblower had almost decided that he would rather have rocks if he could choose and he giggled again, feebly, with his teeth chattering.
Naturally, they were among rocks again quickly enough; at this point apparently there was a sort of minor rapid down which the river rolled among rocks and banks of stones.
Already Hornblower was beginning to form a mental picture of the river — long swift reaches alternating with narrow and rock-encumbered stretches, looped back and forth at the whim of the surrounding country.
This boat they were in had probably been built close to the spot where they had found her, had been kept there as a ferry boat, probably by farming people, on the clear reach where they had started, and had probably never been more than half a mile from her moorings before.
Hornblower, shoving off from a rock, decided that the odds were heavily against her ever seeing her moorings again.
Below the rapid they had a long clear run — Hornblower had no means of judging how long.