Wolf house

The Wolf House is a place where Roman demigods start their journey. It is there where Lupa judges whether the demigods left there are worthy enough. If so, she takes them into the Roman Camp Half-Blood.

History
The Wolf House was built by Jack London, a son of Mercury (Roman form of Hermes). It is where he found out he was a demigod. London thought that he could live in it, but it burned in a fire a week before he and his wife were supposed to be moved in.

Appearance
It was described in the Lost Hero as looking like what a millionaire lumberjack would build.

The Lost Hero
Hera, Queen of the Gods, gave Jason Grace, son of Jupiter, over to a she-wolf named Lupa in the Wolf House. Years later, Jason is reunited with his sister Thalia Grace and they find Hera trapped in the house. Leo Valdez and Piper McLean work together to free Hera while Jason fights Porphyrion (who rose up from the house's pool), a giant born to destroy the gods. After Hera was freed and unleashed her true form (and almost killed Jason), Porphyrion escaped, the monsters died, and the hunters unfroze.