Seventeen-year-old Karou, a lovely, enigmatic art student in a Prague boarding school, carries a sketchbook of hideous, frightening monsters--the chimaerae who form the only family she has ever known.

Isabel Raine thought she had everything–a successful career, a supportive family, and a happy marriage to the man she loved. Then one ordinary morning, her husband, Marcus, picks up his briefcase, kisses her good-bye, and simply vanishes.
That day, all her calls to him go straight to voice mail; the messages she leaves at his office go unreturned, too. Panicking after finally receiving a call from his cell phone in which all she can hear...

During the last moments of calm in prewar Prague, Lenka, a young art student, and Josef, who is studying medicine, fall in love. With the promise of a better future, they marry--only to have their dreams shattered by the imminent Nazi invasion. Like so many others, they are torn apart by the currents of war.

When an undercover Treadstone agent is murdered in Prague, but none of his superiors know what he was doing there, Blackbriar operatives Helen Jouvert and Donovan Wade are sent to investigate, drawing them into a world of conspiracy and fake news.