Aster and his family are adjusting to his unconventional talent for witchery; unlike the other boys in his family, he isn’t a shapeshifter. He’s taking classes with his grandmother and helping to keep an eye on his great-uncle whose corrupted magic wreaked havoc on the family.
Meanwhile, Aster’s friend from the non-magical part of town, Charlie, is having problems of her own — a curse has tried to attach itself to her. She runs to Aster and escapes it, but now the friends must find the source of the curse before more people — normal and magical alike — get hurt.
Notes: Although Aster’s gender is not stated as such in the text, the book is a powerful allegory for trans or gender fluid identity.