Zhou Yunqing first appear as a fierce , impulsive young man who ride his horse into the thick of enemy encampments wielding a long spear . He later die in battle against the Liao Dynasty . After his son 's death , Zhou retreats to the Xiangguo Temple for a long morning period . He later take seven @-@ year @-@ old Yue Fei as his adopted son and sole heir years after the boy 's father drowns in a great flood :