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The Senate House is a meeting place for the Senate.


The Senate House is a domed building. Percy described the inside of the Senate House to be like a high school lecture hall. A semicircle of tiered seats faced a dais with a podium and two chairs. One of the chairs has a small velvet package on the seat. After the Battle of Camp Jupiter, cracks in the dome glistened with silver adhesive. The walls of some buildings had been hastily replastered.

The Heroes of Olympus

The Son of Neptune

The senate gathers in the meeting chamber to discuss details on the upcoming quest to Alaska. Under a week later, after the Attack on Camp Jupiter, the senate meets to debate weither they should allow the Greeks aboard the Argo II to land or not.

The Trials of Apollo

The Tyrant's Tomb

The senators meet to choose who will go on the quest to Tarquin's Tomb, they decide on Apollo, Meg McCaffrey, Hazel Levesque, and Lavinia Asimov. A few days later after the Battle of San Francisco Bay, the surviving legionnaires and civilians gather with the remaining senators. They chose the daughter of Pluto to replace Reyna Ramírez-Arellano, who resigns as praetor to join the Hunters of Artemis and chooses the daughter of Terpsichore as a centurion in the Fifth Cohort.

Camp Jupiter
Camp Jupiter: Bathhouse | Bombilo's Coffee Shop | Camp Borders | Camp Jupiter Aviary | Camp Jupiter Stables | Circus Maximus | Cohorts | Coliseum | Cyclops Books | Field of Mars | Garden of Bacchus | Little Tiber | New Rome | New Rome University | Mess Hall | Neptune's Shrine | Pluto's Shrine | Praetorium | Principia | Senate House | Temple Hill | Temple of Bellona | Temple of Diana | Temple of Jupiter Optimus Maximus | Temple of Mars | Temple of Mercury | Via Praetoria | Via Principalis