The third standalone novel set in Molly Tanzer's magic-infused universe takes readers to World War II?era England where two young women are studying witchcraft. Though once inseparable, competition, secrets, and wildly dangerous magic set them at odds and draw them to terrifying ends. In Northern England during World War II, best friends Jane Blackwood and Miriam Cohen are both studying to join the Societe des Eclairees, an international organisation of diabolists. Though once close as sisters, the pressures of their studies and the war build secrets between them that threaten to tear them apart. Miriam learns her parents are suspected of betraying the Societe to the Nazis, and her effort to clear their names sends her on a perilous journey to a source of the enemy's power. Jane, afraid of falling behind the brilliant Miriam, believes her only hope to excel lies in a forbidden and wildly dangerous use of diabolism: creating a demonic familiar. Their hardest lesson will be learning that sometimes there is no villain, there's just the brutal consequences of making terrible choices.
