Hayden Cooper

Hayden Cooper was an aquifer engineer who became the leader of the first and largest rebellion in Halcyon's history, which became known as Cooper's Rebellion, in an attempt to secure the Uppers' place at the bottom of the city, where they would be safest thanks to the lower radiation levels at the bottom of the city compared to those at the top. While Cooper himself and a few of his followers survived their battle through the city and the lower districts, neither he nor the other survivors were seen or heard from again when they decended into the tunnels below Halcyon in search of a supposed exit to the surface, which became known as Cooper's Exit. Cooper's ultimate fate is completely unknown, with many theories surrounding his fate, and he is held in high regard by the Uppers and with contempt by the Lowers.