Festus Timeline & Summary

Festus is built by Cabin Nine.
Festus malfunctions and runs into the forest, where he sometimes attacks camp.
Leo captures Festus and fixes him (he also names him Festus; before he was just called the dragon).
Festus carries Leo, Piper, and Jason on their quest to rescue Hera.
After many adventures and much bravery, Festus crashes and is destroyed.
Hephaestus transfers Festus's head back to Camp Half-Blood, where it will be re-used as the prow of the Argus II.