Question: How did Percy's mom know how to access the elevator to get them up to Olympus? She's human and Percy's god father left when he was a baby.
Question: I know that Hades is the god of the Underworld, but wouldn't he and Persephone get hot from the flames and the fire?
Chosen answer: What exactly are you asking for here? I'm sure they can sense the heat, but "get hot" is a relative term. When I lived in Brazil for a couple of years, I'd be walking down the street, sweating my brains out while the kids on the side of the road would be complaining that it was too cold out for them. Yet we're both still just as human. Now, if Hades is a god -- god of the Underworld, no less, as you point out -- how are we supposed to know how hot is too hot for him?
Question: Why is the hydra able to spit fire, when it suppose to be a water creature?
Answer: Water creature? The Hydra is a MYTHOLOGICAL creature, with many different variations in different stories. She lived in a swamp, had bad breath. This is just another different interpretation of the same Greek myth.
Answer: At some point in her relationship with Poseidon, he told her about the elevator. Otherwise, she could not have known.
raywest ★