Jake Mason

"I hope you like it here, Leo. It used to be...really nice."

- Jake talking to Leo Valdez in The Lost Hero

Jake Mason is a demigod son of Hephaestus and the temporary head counselor for Hephaestus' cabin after Charles Beckendorf's death. He gave up the position to Leo Valdez after Leo completed his first quest.

The Last Olympian
Jake brainstorms with Percy Jackson, Annabeth Chase, Chiron, and the other campers in order to figure out how to defend Manhattan and the Empire State Building (which is the entrance to Mount Olympus) in the Battle of Manhattan. He fought alongside his cabin and he went up to Mount Olympus when the Second Titan War was won. He was thanked by the gods and he was made the lead counselor for his cabin since Beckendorf had died of an explosion on Luke Castellan's "cruise" ship, Princess Andromeda.

The Lost Hero
Jake is in a full body cast after going after Festus, the bronze automaton dragon, and unsuccessfully trying to fix or capture it. He believes that there is a curse on Hephaestus's children after Beckendorf died. He resigned after Leo Valdez revealed Bunker 9, and his unusual heritage (he had the ability to manipulate fire, pyrokinesis), and the Cabin began construction on the Argo 2.

Trivia

 * Jake is the only known Head Counselor to willingly resign.
 * His surname is "Mason," which means a person who works with stone although this is inappropriate as Hephaestus is the god of metal work.
 * When he is first seen in The Lost Hero, he is covered in casts and in a wheel chair, due to the Curse of Cabin Nine.