Steven builds a siege tower to storm the castle, and Martin destroys it with something Steven had tried earlier: gunpowder. Steven's soldiers are killed as Steven scales the tower's ladders, and he falls into the castle grounds. The mercenaries capture Steven and shackle him in the courtyard. Agnes pretends to join in the abuse of the captive Steven and even makes love to Martin in his presence. Using a new medical technique Steven had learned (cutting the buboes on the infected body), Hawkwood cures his plague. He cannot continue the siege alone but, before leaving for additional troops, he catapults pieces of an infected dog into the castle. One chunk lands near the chained Steven, who flings it into the castle's water well. Agnes sees this and Steven tells her that she can decide whether to tell the mercenaries.