Eleven-year-old Ella Durand is the first Conjuror to attend the Arcanum Training Institute, a magical school in the sky where students learn to become Marvellers. While struggling to fit in and facing prejudice against her folk magic traditions, Ella discovers a sinister plot threatening the entire magical world. With new friends and unexpected allies, she must use her unique Conjuring gifts to uncover secrets and save the Marvellian realm from a dangerous enemy.