British, sent on the message to Rai Durlabh and the Nawab, with the malicious addition that the Fort, if it had not already fallen, would fall before Rai Durlabh could reach it. This put an end to all chance of the Nawab interfering.

The French spent the day in blocking a narrow passage formed by a sandbank in the river, a short distance below the town. They sank--

"four large ships and a hulk,... and had a chain and boom across in order to prevent our going up with the squadron. Captain Toby sent his 2nd lieutenant, Mr. Bloomer, that night, who cut the chain and brought off a sloop that buoyed it up."[43]

It was apparently this rapid attack on the position that accounts for the timidity of the pilots and boatmen, who, Renault tells us, hurried away without staying to sink two other ships which were half laden, and which, if sunk, would have completely blocked the passage. Even on the ships which were sunk the masts had been left standing, so as to point out their position to the enemy.

Besides the ships sunk in the passage, there were at Chandernagore the French East Indiaman the _Saint Contest_ (Captain de la Vigne Buisson), four large ships, and several small ones. The French needed all the sailors for the Fort, so they sank all the vessels they could not send up the river except three, which it was supposed they intended to use as fire-ships.

Clive, in the meantime, was advancing cautiously, his men erecting batteries, which seemed to be very easily silenced by the superior gunnery of the Fort. His object was partly to weary out the garrison by constant fighting, and partly to creep round to the river face, so as to be in a position to take the batteries which commanded the narrow river passage, as soon as Admiral Watson was ready to attack the Fort. Later on, the naval officers asserted he could not have taken the Fort without the assistance of the fleet. He said he could, and it is certain that if he had had no fleet to assist him his mode of attack would have been a very different one.

Early in the siege the French were warned from Chinsurah to beware of treachery amongst the deserters in their pay, and on the 17th of March a number of arrows were found in the Fort with labels attached, bearing the words:--

"Pardon to deserters who will rejoin their colours, and rewards to officers who will come over to us."

These were seized by the officers before the men could see them, but one of the officers themselves, Charles Cossard de Terraneau, a sub-lieutenant of the garrison, took advantage of the offer to go over to the English. This officer had served with credit in the South of India, and had lost an arm in his country's service. The reason of his desertion is said to have been a quarrel with M. Renault. M. Raymond, the translator of a native history of the time by Gholam Husain Khan,[44] tells a story of De Terraneau which seems improbable. It is to the effect that he betrayed the secret of the river passage to Admiral Watson, and that a few years later he sent home part of the reward of his treachery to his father in France. The old man returned the money with indignant comments on his son's conduct, and De Terraneau committed suicide in despair. As a matter of fact, De Terraneau was a land officer,[45] and therefore not likely to be able to advise the Admiral, who, as we shall see, solved the riddle of the passage in a perfectly natural manner, and the Probate Records show that De Terraneau lived till 1765, and in his will left his property to his wife Ann, so the probability is that he lived and died quietly in the British service. His only trouble seems to have been to get himself received by his new brother officers. However, he was, so Clive tells us, the only artillery officer the French had, and his desertion was a very serious matter. Renault writes:--

"The same night, by the improved direction of the