Beetle and the Hollowbones
Beetle and Hollowbones were friends before Hollowbones left for school. Beetle stayed to study with her grandmother. But Hollowbones is back to study with her aunt.
Beetle learns that Hollowbones’ aunt is buying the local mall, where her ghost friend is stuck—she must figure out how to save her friend—and heal her friendship with Hollowbones.