A few nights later, Windham sends the Light Company on a night attack to destroy a dam. He asks Sharpe to serve as his aide. Before the attack, Harper's seven-barrelled gun is taken from him by Hakeswill, as it is a non-regulation weapon. When the Light Company takes longer than expected, Windham orders Sharpe to find out the cause of the delay - stressing he is to do nothing else - and report back as soon as possible. The accompanying engineers light a fuse to detonate barrels full of gunpowder, but it becomes dislodged. Sharpe decides to blow the wall himself. He succeeds, but it turns out the engineers miscalculated, and the dam remains intact. During the fighting, Hakeswill tries to kill Sharpe using Harper's seven-barrelled gun, but only wounds him in the leg.