We'll stop the summary there to avoid spoilers, but Fourth Wing is the first of a planned five-book series. Its follow-up, Iron Flame, was published in November 2023, just six months after its predecessor. The third novel, Onyx Storm, had its record-breaking release in January 2025. The fourth and fifth books do not currently have release dates.

Moira Walley-Beckett has exited Amazon's TV series adaptation of "Fourth Wing" after signing on as showrunner last July.