"The latest page I've been working is about the organization of the pantheon of the gods. Who's indebted to whom, how they are related, who screwed whose uncle or grandmother, all of that"

This quote by Ben Nicholson is referring to the complex relationships between the gods in the pantheon. He is suggesting that there are numerous detailed connections between the gods, such as who is indebted to whom, how they relate, and who has actually mistreated another. This could describe the gods' relationships with each other, or to the relationships between the gods and mortals. It is most likely that the page he is dealing with is an attempt to explain and organize these complicated relationships. This could be helpful for those who are unfamiliar with the pantheon, as it would supply a comprehensive summary of the gods and their relationships. It could likewise be used as a recommendation for those who are currently acquainted with the pantheon, as it would provide an in-depth account of the gods' relationships.