Xu Hai had settled in the Shen Family Estate (沈家莊, Shenjiazhuang) of Pinghu, where he recruited up to 300 new followers by hosting banquets for his neighbours, adding to the thousand or more raiders still under his command and remnants of Chen Dong's group next to the estate. He grew increasingly recalcitrant, refusing an invitation to an official Mid-Autumn party and even killing an envoy from Hu Zongxian. In late September, reinforcements from Baojing and Yongshun arrived and began small-scale skirmishes around the Shen Family Estate. Before commencing the final attack, Hu Zongxian persuaded his captive Chen Dong to write a letter to his followers encamped next to Xu Hai's forces, warning them that Xu Hai was conspiring with government troops to wipe them out in a pincer operation. This provoked Chen Dong's men into attacking Xu Hai's group on September 27, upon which government forces entered the fray from all directions, killing indiscriminately. On September 29, the battle ended with up to 1600 marauders killed in the estate, and Xu Hai's body was found in a nearby stream. On October 10, Chen Dong, Ye Ma, and Xu Hai's hostage brother were all executed in Jiaxing, marking the end of the wokou invasion of 1556. Capture of Wang Zhi With Xu Hai's group put down, Hu Zongxian could focus his efforts in securing Wang Zhi's surrender. Mao Haifeng had been sent back to Wang Zhi to persuade him to come to China in person, as Wang Zhi had never led raids himself. However, in September 1557, when Wang Zhi was preparing to present himself to the authorities to discuss the opening of oversea trade, Zhao Wenhua, the major pusher of an appeasement policy, was accused of embezzlement, lost imperial favour, and died a commoner to illness. The political situation did not allow Hu Zongxian or Yan Song to ask the emperor that Wang Zhi be pardoned. On 17 October 1557, Wang Zhi arrived at Zhoushan Island with a large trading fleet. There he laid down his terms for surrender: he sought an imperial pardon, a naval commission, and that ports be open for trade; in return he offered to patrol the coast and persuade the raiders to return to the islands through force if necessary. Hu Zongxian now faced a dilemma: he could not let Wang Zhi go, but if he accepted Wang Zhi's surrender he might be forced to