A ravelin in advance of the fortress on the land side was scourged without ceasing by the arquebus fire of the Janissaries.  One evening, as the return fire had slackened and all seemed quiet within this work, some Turkish engineers stole forth from the trenches to reconnoitre.  Approaching the cavalier, all was still as death; the bold sappers pushed on as far as the ditch by which the work was surrounded, creeping on hands and knees.  They let themselves down noiselessly into the ditch, and then, one standing on the shoulders of another, peeped in upon their Christian foes.  Whether or no the sentry had been slain by a stray shot, or whether he too slept, can never be known; but the cavalier was unguarded; all within it slept the sleep of men utterly exhausted.  The sappers crept back to their trenches, fetched scaling-ladders, swept like a flood over the rim of the cavalier, and put to death every man whom they found.  Profiting by their advantage, the Turks dashed over the bridge connecting the cavalier with the fort; here, however, they were met by Sergeant-Major Guerare and a handful of soldiers aroused by him.  These men were instantly succoured by the Chevaliers de Vercoyran and de Medran, who were immediately followed by the Bailli of Negropont and several other Knights.  An obstinate hand-to-hand combat now ensued; fresh Turks came up to the attack, but were mown down in swathes by an enfilading fire from two cannons which the defenders of the fort managed to bring to bear upon them.  More pioneers arrived from the trenches, carrying planks and sacks filled with wool.  These men tried to effect a permanent lodgment, but the fire was too hot on the Christian side, and men fell in hundreds.  Nothing daunted, the Turks reared their scaling-ladders against the sides of the fortress itself, and attempted to scale the walls; but for this the ladders were too short, and the assailants were hurled back into the ditch.  This attack, in which the Turkish arms were rewarded by the capture of the ravelin behind the cavalier, is said to have cost them the lives of three thousand men.  It lasted from daybreak until midday.

On the side of the Christians twenty Knights and one hundred soldiers were slain; but worst of all, from their point of view, the ravelin remained in the hands of their enemies.  The chevalier Abel de Bridiers de la Gardampe having received a ball through his body, some of his comrades ran to place him under cover.  “Count me no longer among the living,” said the Knight.  “You will be better employed in defending the rest of our brethren.”  He then, unassisted, dragged himself to the foot of the altar in the chapel, where his dead body was discovered when all was over.