where is Eddie? What is keep happening to him?

The chapter starts with Eddie's awareness that he is in a small, round room. He notices that as he completes each stage in Heaven, he grows older.

When did this start? Eddie thought. He touched his skin, which had aged since his time with Ruby. It felt thinner now, and drier. His midsection, which during his time with the Captain had felt tight as pulled rubber, was loose with flab, the droop of age.

There are still two people for you to meet, Ruby had said. And then what? His lower back had a dull ache. His bad leg was growing stiffer. He realized what was happening, it happened with each new stage of heaven. He was rotting away.