The sidetrack is the first chapter to be released in 2024.
This chapter was released between "The Roots of Evil" and "What Now?".
The fourth Q&A was included as part of the chapter, where gods from the Olympus pantheon answer questions in-character.
The sidetrack was published between the 87th and 88th chapters of Book 2. Ironically, "The Book of Marcy Wu" was set between the series' actual 87th and 88th chapters.