|This article is about the Hidden One. You may be looking for the Roman Senator.|
In 122, the Roman Emperor Hadrian traveled to Britannia with the objective of warring with the Britons and Picts in the north. Seeking to put a stop to this plan, Caius was sent by the Londinium bureau to infiltrate Hadrian's villa as a slave during Emperor's stay in the city and poison him.
However, Caius was discovered and killed, making the contract a failure.
- Assassin's Creed: Valhalla (mentioned only)