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Jake Mason

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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 Greek demigod, son of Hephaestus. He was the temporary head counselor for Hephaestus' cabin after Charles Beckendorf's death. He voluntarily gave up the position to Leo Valdez after Leo completed his first quest to free Hera.

Percy Jackson and the Olympians

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 Olympus in the Battle of Manhattan. He fought alongside his cabin, and went to Mount Olympus when the Second Titan War was won. He was thanked by the gods, and was made the counselor of his cabin, after the former counselor, Beckendorf died from an explosion on Luke Castellan's cruise ship, Princess Andromeda.

The Heroes of Olympus

The Lost Hero

Hephaestus Vulcan

Hephaestus, his father

Leo Valdez meets Jake, after he unsuccessfully tries to fix or capture Festus, the bronze automaton dragon, resulting in him being put into a full body cast. He believes that there is a curse on Cabin nine after Beckendorf died, although he gives Leo the bed of Beckendorf. He later recovers from his meeting with Festus, and is able to walk around on crutches. He resigned after Leo Valdez revealed Bunker 9 and his unusual powers, and the cabin began construction of the Argo II.


When he is first seen in The Lost Hero, he is covered in a full body cast and in a wheel chair, due to his run-in with Festus and, as he believes, the Curse of Cabin Nine.



Leo Valdez, his half-brother and successor

As a child of Hephaestus, he has the following abilities:

  • He is an expert builder.
  • Technokinesis: As the son of Hephaestus, he can manipulate machines.
    • He is an expert mechanic.
    • He can sense machines, mechanics, or metal.
    • He can identify machinery type and use by touch.
    • He can sense faults in metal ore.
  • He can find and sense traps in the ground.


  • Jake is the only known Head Counselor to have willingly resigned.
  • His last name, Mason, is an allusion to his father, since a mason is someone who builds.
Percy Jackson and the Olympians
Core Series: The Lightning Thief | The Sea of Monsters | The Titan's Curse | The Battle of the Labyrinth | The Last Olympian
Main Characters: Percy Jackson | Grover Underwood | Annabeth Chase | Tyson | Clarisse La Rue | Thalia Grace | Nico di Angelo | Chiron | Luke Castellan | Rachel Elizabeth Dare
Minor Characters: Travis Stoll | Connor Stoll | Mrs. O'Leary | Silena Beauregard | Charles Beckendorf | Sally Jackson | Paul Blofis | Blackjack | Zoë Nightshade | Bianca di Angelo | Juniper | Michael Yew | Ethan Nakamura
Olympian Gods: Zeus | Hera | Poseidon | Demeter | Ares | Athena | Apollo | Artemis | Hephaestus | Aphrodite | Hermes | Dionysus | Hades | Hestia
Minor Gods: Amphitrite | Ariadne | Hecate | Iris | Janus | Morpheus | Nemesis | Pan | Persephone | Triton
Titans: Kronos | Atlas | Calypso | Iapetus | Krios | Hyperion | Oceanus | Prometheus
Related Content: Rick Riordan | The Lightning Thief (film) | The Sea of Monster (film) | The Demigod Files | Demigods and Monsters | The Ultimate Guide | The Heroes of Olympus
The Heroes of Olympus
Core Series: The Lost Hero | The Son of Neptune | The Mark of Athena | The House of Hades | The Blood of Olympus
Main Characters: Jason Grace | Piper McLean | Leo Valdez | Percy Jackson | Frank Zhang | Hazel Levesque | Annabeth Chase | Reyna Avila Ramírez-Arellano | Nico di Angelo | Gleeson Hedge
Minor Characters: Rachel Elizabeth Dare | Thalia Grace | Octavian | Fleecy | Dakota | Ella | Tyson | Mrs. O'Leary | Arion | Hylla | Echo | Bob | Calypso
Olympian Gods: Zeus | Hera | Poseidon | Hades | Ares | Demeter | Athena | Apollo | Artemis | Hephaestus | Aphrodite | Hermes | Dionysus
Minor Gods: Achelous | Aeolus | Boreas | Keto | Khione | Thanatos | Iris | Hypnos | Hecate | Nemesis | Mithras | Notus | Triptolemus | Zephyros | Serapis | Kymopoleia | Nike | Phorcys
Roman Gods: Jupiter | Juno | Neptune | Pluto | Mars | Minerva | Ceres | Lupa | Bellona | Fortuna | Janus | Terminus | Vulcan | Mercury | Pomona | Aquilon | Hercules | Cupid | Auster | Favonius | Letus | Victoria | Orcus
Giants: Enceladus | Porphyrion | Polybotes | Alcyoneus | Ephialtes | Otis | Damasen | Clytius | Mimas | Orion | Hippolytus | Thoon | Periboia
Undead: Echo | Gray | Lityerses | Medea | Midas | Narcissus | Otrera | Phineas | Sciron
Primordial Gods: Gaea | Tartarus | Ourae | Nyx | Chaos | Ouranos | Akhlys | Erebos | Hemera | Elpis | Spes
Companion Books: Percy Jackson and the Olympians | Demigods and Monsters | The Ultimate Guide | The Demigod Files | The Demigod Diaries | The Son of Sobek | The Singer of Apollo | The Staff of Serapis | Percy Jackson's Greek Gods | Percy Jackson's Greek Heroes | The Crown of Ptolemy | Demigods & Magicians

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