Montluc, having fortified Agen, the capture of which would have been another disaster to the Catholics, then set to work to contrive how to break the bridge of boats which Coligny had constructed. A mason who had once built a floating mill for the marquis de Villars above Port-Ste. Marie came to him and suggested loading the mill with stone, cutting it loose, and letting it float down stream with the hope of breaking the bridge. The Garonne at this time was swollen with winter rains. The leaders were skeptical of the scheme, as the bridge was known to be protected by heavy cables above stream. But the captain Thodeas, an engineer with Montluc, supported the mason, after secretly surveying the structure. The novel battering-ram accomplished the work intended. Shortly before midnight the mill was loosed from its moorings, one of the soldiers being drowned in unchaining it. Coligny’s artillery, when it loomed through the darkness, made a desperate attempt to sink it by fire from the batteries at either end of the bridge, but in vain. The mill struck the bridge with such a shock that cables, chains, and boats all went to pieces with a crash. Two of the boats went down as far as St. Macaire and some, it was said, were picked up as far down as Bordeaux.[1423] The destruction of the bridge was a heavy blow to the Protestants for it cut their forces into two parts. Besides Montgomery, very many of the reiters were caught on that side of the river toward Gascony. But Coligny’s enterprise robbed adversity of its sting. He improvised a bridge of two boats, upon which five or six horses could be carried at once, the boats being hauled by cable, after the Italian manner. It required an hour and a half to go and return, yet at last, with great pains and difficulty the whole company of reiters was got across stream. Montluc had proposed to Candale and La Valette that an attack be made upon Montgomery who was quartered at Condom, south of Nérac. But they were so slow in responding that Montgomery, too, was able to pass over, first his horse and then his foot, one after the other, it requiring five or six days for all his forces to make the transit.[1424]