17-year-old Lydia Carlton is a fairy doctor in Victorian England. She is one of the rare humans who can see and communicate with fairies, although almost no one believes her in this day and age. But Lydia's quiet country life is turned upside down when Edgar J. C. Ashenbert, who claims to be royalty, hires her for her fairy expertise. She joins his quest for an invaluable magic sword, traveling from the United Kingdom to the Fairy World in this adventurous romantic fantasy.