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双影之谜 (Mystery of Twin Shadows)

A four-day, three-night Xiamen hotel convention at Xiamen Yuehua Hotel. The event announcement frames the program as a summer charity banquet and a mystery surrounding a legendary diamond; it also advertised staff, photography, vendor, stage and car-show applications. Source: https://www.furrycons.cn/egretisland/2026-aug-xiamen-con.