In Assassin's Creed Syndicate, the Frye twins' criminal gang is called the Rooks.
Jacob and Evie Frye establish the Rooks in London as part of their effort to challenge Templar control and protect working-class communities. The gang is a gameplay organization that helps the twins seize territory, recruit allies, and carry out activities across Victorian London.
The Rooks are opposed by the Blighters, a rival gang controlled by the Templar Grand Master Crawford Starrick and his network. Their names are easy to mix up because both groups operate in the same districts and are involved in the game's territory system.
Syndicate is set in London in 1868, during the Industrial Revolution. Its campaign includes historically inspired figures such as Charles Dickens, Karl Marx, and Queen Victoria, while Jacob and Evie remain fictional protagonists.