The Tongs were a gang that was based in London in (PROSE: Birthright) the 19th (PROSE: Madame Vastra) and the 20th centuries. (PROSE: Birthright)
History
Mollie Wilkins thought that they might have been responsible for the series of murderers that occurred in 1909. (PROSE: Birthright)
Madame Vastra first met Jenny Flint after she saved her from the Tongs, who was molesting Jenny and attempting to drag her off as part of a mating ritual. (PROSE: Madame Vastra)