Hightower Coal was built in the early 1800s, aiming to provide the citizens of Southwark of power. The company was very successful, until it started taking a turn for the worse around the 1850s. Hightower Coal was accused of overworking its employees for less than the minimum wage, and eventually, only the most desperate of job-seeking children worked at the facility.
In 1868, the Assassin twins Jacob and Evie Frye arrived in London, seeking to free the city of Templar control. In their search for allies, they met Clara O'Dea, who asked them to free the laboring children from the factory halls.
The Frye twins infiltrated Hightower Coal to free the children, assassinating the overseer in the process. In the aftermath of this infiltration, the Rooks moved in and freed the factory from Blighter control, seizing it for themselves.