About a quarter before ten a hand-grenade, thrown by one of the Richard's men from the main-top of the Serapis, struck the combing of the main-hatch, and, glancing inward upon the main deck, set fire to a cartridge of powder. Owing to mismanagement and defective training, the powder-boys on this deck had bought up the cartridges from the magazine faster than they were used, and, instead of waiting for the loaders to receive and charge them, had laid them on the deck, where some of them were broken. The cartridge fired by the grenade now communicated to these, and the explosion spread from the main-mast aft on the starboard side, killing twenty men and disabling every man there stationed at the guns, those who were not killed outright being left stripped of their clothes and scorched frightfully. At this conjuncture, being about ten o'clock, the gunner and the carpenter of the Richard, who had been slightly wounded, became alarmed at the quantity of water which entered the ship through the shot-holes which she had received between wind and water, and which, by her settling, had got below the surface. The carpenter expressed an apprehension that she would speedily sink, which the gunner, mistaking for an assertion that she was actually sinking, ran aft on the poop to haul down the colors. Finding that the ensign was already down in consequence of the staff having been shot away, the gunner set up the cry, "Quarter! for God's sake, quarter! Our ship is sinking!" which he continued until silenced by Jones, who threw at the recreant a pistol he had just discharged at the enemy, which fractured his skull, and sent him headlong down the hatchway. Captain Pearson, hearing the gunner's cry, asked Jones if he called for quarter, to which, according to his own words, he replied "in the most determined negative." Captain Pearson now called away his boarders and sent them on board the Richard, but, when they had reached her rail, they were met by Jones himself, at the head of a party of pikemen, and driven back. They immediately returned to their ship, followed by some of the Richard's men, all of whom were cut off.