Festus

The Bronze Dragon was a automaton created to defend the camp by the Hephaestus cabin with the blessing of their father. It was created before Thalia's tree gave the camp magical borders to protect the camp. The Dragon kept the camp safe for over a decade and the it disappeared. Its head was found by the Myrmekes and was then reactivated by Percy, Annabeth, and Silenaand used to rescue Charles Beckendorf from the Myrmekes. It was deactivated after that, due to the fact that it was unstable.