Annabeth,Percy,and Grover all enter the underworld but they are greeted by Hades' dog Cerberus. Annabeth takes out a red rubber ball and she plays with Cerberus. Wile Annabeth is playing with Cerberus Percy and Grover pass trough Cerberus' legs.
Percy and his friends rush into the palace of Hades. But when they enter there were Skeleton guards armed with guns and spears. Percy tries to convince Hades to give him Zeus' master bolt. But Hades says that he is accusing him of something that he didn't do. So he tells Percy open his bag so Percy opens up his bag and somehow the master bolt was in it so he and his two friends used the petals to escape.
When they arrive on shore they see the place already burning and smoking in the distance. And then they see Ares and he sees Ares with Hades helm of darkness and then Ares says "your supposed to be dead." So then Percy knew that Ares set him up.
Ares was hard for Percy to beat in a battle but then he remembered that Annabeth said "sometimes strength has to bow to wisdom." So Percy held back a huge wave and then when Ares came close enough he let it go and he slashed Ares in the foot and he started to bleed the gold blood of a god.
The three furies saw this happening so then they came down to Percy and Mrs.Dods said "I guess it really wasn't you." Percy tossed the helm of darkness to the three furies.
After that they realized that they still have to get to the Empire State building to return the master bolt back to Zeus' to stop the war from happening. But they were so far away so then Percy said "we ware going to take an airplane."