17-year-old Mia exists in a chronic state of anxiety. The counselors at her last two schools had a word for it: hyper-vigilance. At Kazemoto Security Corp.’s Supernatural Division, the recruitment scouts have a word for it, too: potential.

A child slips through a portal into the land of the Fae and traverses the Otherworld with the help of a young elf, while her parents are left to deal with the changeling that was left in her place.