Aster wrote six books before her first
book deal. She published her first book,
Curse of the Night Witch, in 2020, followed by its sequel in 2021. The series was inspired by her Colombian heritage and the stories her grandmother would tell her; however, the series did not receive the level of commercial success she had hoped for. The novel’s success further led to a movie deal with
Universal Pictures and
Temple Hill, with Aster executive producing. Aster was named on the
Forbes 30 Under 30 list in 2023. Aster's adult debut,
Summer in the City, released in March 2025. and hardcover fiction. == Works ==