A career diplomat with a reputation for supporting scientific expeditions, Hargrave had previously funded the excavation at Luoyang that unearthed the original Jia Lissa tablet. In a letter to his colleague, Sir , dated 12 October 1911, Hargrave wrote:
The serial’s climax—an imagined protest on Westminster Bridge—prefigures the real 1911 London Chinese Workers’ March (June 1911), documented in The Times (June 12, 1911). Although the novelised protest is fictional, its timing suggests that the authors were not merely observers but participants in a broader activist milieu.