At this point of the war it was obvious that the Song did not have sufficient strength to risk fighting the Yuan in a head-on conflict. Zhang Shijie decided to build a vast fleet with what remained, to allow the Song court and soldiers to move from place to place until the situation improved. The Song court sailed to Guangdong from Quanzhou. However, Zhao Shi's boat capsized in a storm on the way to Leizhou. Although he survived, he fell ill because of this ordeal. The imperial court later sought refuge in Lantau Island's Mui Wo, where Emperor Zhao Shi eventually died; he was succeeded by his younger sibling, Zhao Bing (under a temple name Emperor Huaizong, unofficially), who was seven. Zhang Shijie brought the new emperor to Yamen and prepared the defense against the Yuan there.