A force consisting of local militias and a few well trained soldiers was assembled in a mountain near the Yangtse River, and Han along with his wife hurried to take command of it. In his journey, he stayed in a local temple where he came face to face with a few Jin Generals and over a hundred Jurchen warriors. Despite the fact that Han only had a few guards and his wife along with him, they managed to fend the enemy off and took the heads of some Jin Generals. The group arrived shortly at the mouth of the river. The Battle of Huangtiandang In the battle that soon took place, known as the Battle of Huangtiandang (黃天蕩), the outnumbered Chinese forces stayed quiet for a while. Han gave the false impression that his soldiers had to retreat to a temple up a mountain, which the Jurchens thought of as a time when they could easily captured him. However, it was a trap that Han deployed for them. As the Jurchen commander Jin Wuzhu (金兀术) entered the temple, he was surrounded by a few well trained riders, and he and men in his group were completely cut off from the others by Chinese troops hiding in the road up the mountain. This led to a popular saying of the time, " a hundred thousand lured to a trap, and it takes only eight thousand riders to cut them off." 十萬敵兵來假道，八千驍騎截中流. The Jin navy on the river was checked by a new invention of the Chinese, the tiger ship, which could spill fire from its front using flamethrowing technology imported from the Middle East by way of Arab mariners. They attacked after hearing the signal of Liang Hongyu who beat the wardrums in a hill nearby (). The tiger ships quickly pierced the Jin ships, and the Jin navy was close to being routed by their enemies. The Jurchens were trapped for forty days wherein almost half their force was routed; and, the Jin prince who commanded the Jurchen army even sent messengers to the Chinese commander and offered bribes to beg for mercy. Han ignored the request. Eventually the Jurchens escaped through a hole in Han's encirclement due to the lack of soldiers—the weakness was revealed by a Song traitor. Even so, the Jurchens was checked by General Yue Fei and almost entirely routed before they get back to Jin