They were off Noirmoutier at dawn, with the last dying puff of wind.
The grey light found them becalmed and enwreathed in a light haze which drifted in patches over the calm surface of the sea, awaiting the rising of the sun to dissipate it.
Hornblower looked round him as the details became more clear.
The galley slaves were all asleep on the foredeck, huddled together for warmth like pigs in a sty, with Brown squatting on the hatch beside them, his chin on his hand.
Bush still stood at the tiller, betraying no fatigue after his sleepless night; he held the tiller against his hip with his wooden leg braced against a ring bolt.
Against the rail the pilot drooped in his bonds; his face which yesterday had been plump and pink was this morning drawn and grey with pain and fatigue.
With a little shudder of disgust Hornblower cut him loose.
"I keep my promise, you see," he said, but the pilot only dropped to the deck, his face distorted with pain, and a minute later he was groaning with the agony of returning circulation.
The big mainsail boom came inboard with a clatter as the sail flapped.
"I can't hold the course, sir," said Bush.
"Very well," said Hornblower.
He might have expected this.
The gentle night wind which had wafted them down the estuary was just the sort to die away with the dawn, leaving them becalmed.
But had it held for another half hour, had they made another couple of miles of progress, they would be far safer.
There lay Noirmoutier to port, and the mainland astern; through the shredding mist he could make out the gaunt outlines of the semaphore station on the mainland — sixteen years ago he had been second in command of the landing party which Pellew had sent ashore to destroy it.
The islands were all heavily garrisoned now, with big guns mounted, as a consequence of the incessant English raids.
He scanned the distance which separated them from Noirmoutier, measuring it with his eye — they were out of big gun range, he fancied, but the tide might easily drift them in closer.
He even suspected, from what he remembered of the set of the tides, that there was danger of their being drifted into the Bay of Bourgneuf.
"Brown," he called, sharply.
"Wake those men up.
Set them to work with the sweeps."
On either side of every gun was a thole for a sweep, six on each side of the ship; Brown shoved his blear-eyed crew into their positions and showed them how to get out the big oars, with the long rope joining the looms.
"One, two, three, pull!" shouted Brown.
The men put their weight on the oars; the blades bubbled ineffectively through the still water.
"One, two, three, pull!
One, two, three, pull!"
Brown was all animation, gesticulating, running from man to man beating time with his whole body.
Gradually the cutter gathered way, and as she began to move the oar blades began to bite upon the water with more effect.
"One, two, three, pull!"
It did not matter that Brown was counting time in English, for there was no mistaking his meaning, nor the meaning of the convulsive movements of his big body.
"Pull!"
The galley slaves sought for foothold on the deck as they tugged; Brown's enthusiasm was infectious, so that one or two of them even raised their voices in a cracked cheer as they leaned back.
Now the cutter was perceptibly moving; Bush swung the tiller over, felt the rudder bite, and steadied her on her course again.
She rose and fell over the tiny swell with a clattering of blocks.
Hornblower looked away from the straining men over the oily sea.
If he had been lucky he might have found one of the ships of the blockading squadron close inshore — often they would come right in among the islands to beard Bonaparte.
But to-day there was no sail in sight.
He studied the grim outlines of the island for signs of life.
Even as he looked the gallows-like arms of the semaphore station on the mainland sprang up to attention.
They made no further movement, and Hornblower guessed that they were merely announcing the operators' readiness to receive a message from the station further inshore invisible to him — he could guess the purport of the message.
Then the arms started signalling, moving jerkily against the blue sky, transmitting a brief reply to the interior. Another period of quiescence, and then Hornblower saw the signal arms swing round towards him — previously they had been nearly in profile.
Automatically he turned towards Noirmoutier, and he saw the tiny speck of the flag at the masthead there dip in acknowledgement. Noirmoutier was ready to receive orders from the land.
Round and round spun the arms of the semaphore; up and down went the flag in acknowledgement of each sentence.
Near the foot of the mast appeared a long jet of white smoke, rounding off instantly into a ball, and one after the other four fountains of water leaped from the glassy surface of the sea as a shot skipped over it, the dull report following after.
The nearest fountain was a full half mile away, so that they were comfortably out of range.
"Make those men pull!" roared Hornblower to Brown.
He could guess what would be the next move.
Under her sweeps the cutter was making less than a mile in the hour, and all day long they would be in danger, unless a breeze came, and his straining eye could see no hint of a breeze on the calm surface of the sea, nor in the vivid blue of the morning sky.
At any moment boats crowded with men would be putting off towards them — boats whose oars would move them far faster than the cutter's sweeps.
There would be fifty men in each, perhaps a gun mounted in the bows as well.