- Hilarious in Hindsight:
- Despite what the author assumed at the first chapter, Rick Riordan would eventually have his name associated with Hindu mythology, with Indra mentioned in The Trials of Apollo and the Pandava Quartet featuring Aru Shah in the Rick Riordan Presents line. The first one in fact.
- After previously offhandily mentioning them, a Rick Riordan Presents book focusing on Mesopotamian gods was announced in early 2019: City of the Plague God. The status of them being weakened and sealed by humans, however, is unknown.
- As the God of Space Flight Percy Jackson is expected to guarantee his pantheon's power and influence in space. The Space Fantasy Rick Riordan Presents Dragon Pearl shows us a mythological space, and it is dominated by Korean mythological beings with no reference to any other group.
- Values Resonance: Percy explains to Amaterasu and Tsukuyomi that one of his reasons to reject godhood was the looming conflict that would be born from his immortal step-mother and step-siblings's resentment over his existence. Harem politics having been quite extremely proeminent in Asian cultures, both Japanese deities concede wars have been waged for less than a great lord distinguishing a son from one of his concubines.
YMMV / Son of the Western Sea