 As Miraz and his army arrive at Aslan 's How , Caspian suggests Peter and Miraz duel to the death , with the loser 's army to surrender , to buy Lucy and Susan time to find Aslan . Miraz agrees to the duel , not wanting to look like a coward in front of his men . The girls are attacked by Telmarine soldiers , so Susan remains behind to fight them while Lucy continues alone . Peter defeats Miraz , and gives Caspian his sword to finish him off , but Caspian spares Miraz 's life . Sopespian kills Miraz with one of Susan 's arrows and accuses the Narnians , leading to a battle , with the Telmarines gradually winning . Lucy finds Aslan in the woods and he awakens the trees , turning the battle in the Narnians ' favor . Sopespian orders retreat to a bridge , where they are confronted by Lucy and Aslan . Aslan summons the river god , who destroys the bridge , killing many of the soldiers , swallowing Sopespian and winning the battle . 
