1. Annabeht pays with the Lotus Hotel card, which had unlimited cash.
2. The spirit gives percy three pearls, which get him out of the underworld.
3. They go to Crusty's Bed store.
4. Crusty tries to cut them up so they fit on the beds. Percy tricks him into laying on the bed and he cuts Crusty up
5. They find out the address to the entrance to the underworld
Hope this helps (and yes, i know these are correct because im a huge fan and read all the books)