Penelope and her brother Dorian are globetrotting paranormal investigators working under the world renowned Alchemist Doctor Edward M. Arthwitte. Although she is skeptical of the supernatural, and despite a lack of any clear evidence during her two years working with the Doctor, Penelope persists for one reason: her long lost older sister, Olivia. Olivia was a globetrotter herself, an anthropologist, and Arthwitte was the last person to see her before her tragic flight over Antarctica - where she disappeared.

Their most recent case involves alleged vampires in the remote village of Rukriz in the Moravian Protectorate. Except, this time, the vampires are real. Vampires that may have been created using Olivia's own magical grimoire.