Gordon's own opinion of his work was given in the following letter:--
"I have the satisfaction of knowing that the end of this rebellion is at hand, while, had I continued inactive, it might have lingered on for years. I do not care a jot about my promotion or what people may say. I know I shall leave China as poor as I entered it, but with the knowledge that, through my weak instrumentality, upwards of eighty to one hundred thousand lives have been spared. I want no further satisfaction than this."
Having retired from the active direction of the campaign, Gordon still retained sufficient interest in the work he had had in hand so long to incline him to accept an invitation to visit the lines of Tseng Kwofan before Nanking. On 26th June he visited that Viceroy's camp, and found that his position extended over from twenty-four to thirty miles, and that he commanded 80,000 troops, who were, however, badly armed. The troops were well fed, but ill paid, and at last confident of success. While Gordon was there, or only a few hours after he left, Tien Wang, the leader of the moribund Taeping cause, seeing no chance of escape, swallowed gold leaf in the approved regal fashion, and died. On the 19th July the Imperialists succeeded in running a gallery under the wall of Nanking, and in charging it with 40,000 lbs. of powder. The explosion destroyed fifty yards of the wall, and the Imperialists at once stormed the breach. Chung Wang made a valiant defence in his own palace, and then cut his way out, at the head of 1000 men. Very few of these escaped, but Chung Wang and the young Tien Wang, son of the defunct leader, were among the fortunate few. Chung Wang was soon captured, and beheaded on 7th August, after being allowed a week's respite to write the history of the Taeping rebellion. At least it may be claimed for him that he was the only true hero of the rebel movement. Gordon's own estimation of this leader is given in these words:--
"He was the bravest, most talented, and enterprising leader the rebels had. He had been in more engagements than any other rebel leader, and could always be distinguished. His presence with the Taepings was equal to a reinforcement of 5000 men, and was always felt by the superior way in which the rebels resisted. He was the only rebel chief whose death was to be regretted; the others, his followers, were a ruthless set of bandit chiefs."