Question: what are zeus and poseidon fighting over in percy jackson?
Answer: Chiron helps Percy and Grover figure out that they must travel to Hades in order to recover the master bolt. Hades is the god who has turned against his brothers, Zeus and Poseidon. Hades must have had someone steal the master bolt for him so that Zeus and Poseidon would wage war on one another. ... A hero like Percy.