Published in 2023, Nightbane is the second installment in the Lightlark saga, written by Colombian American author Alex Aster. Born in 1995, Aster gained popularity on TikTok by promoting her first young adult fantasy romance novel, Lightlark, in 2022. Due to her immediate rise to fame, Aster was then offered a publishing deal for the entirety of the Lightlark series. Following the publication of the first installment, Aster was propelled to the New York Times Best Seller list.