Eleven-year-old Ella Durand is the first Conjuror to attend the Arcanum Training Institute, a magic school in the clouds where Marvellers from around the world practice their cultural arts, like brewing Indian spice elixirs and bartering with pesky Irish pixies. Despite her excitement, Ella discovers that being the first isn’t easy—some Marvellers mistrust her magic, which they deem “bad and unnatural.” But eventually, she finds friends in...