The story mainly takes place at Camp Half-Blood, where demigods, or half-bloods, go to train. Some characters, such as Annabeth, have lived there for a long time because either their mortal parent is gone, or they don't like the condition with their family at home.
During the rest of the book, if they aren't at camp, they were traveling to many other places. When they encountered the skeleton warriors for the second time, they were at Hoover
Dam. Thalia had given up on praying to her father Zeus a long time ago, but Percy told her to pray another time. This time, Zeus answered his daughter's prayer and made statues come to life and fly them away from the Hoover Dam and the skeleton warriors.
Dam. Thalia had given up on praying to her father Zeus a long time ago, but Percy told her to pray another time. This time, Zeus answered his daughter's prayer and made statues come to life and fly them away from the Hoover Dam and the skeleton warriors.