London, 1921. Prominent Cabinet minister Lord Amersham has been shot dead outside his Regents Park home, two bullets to the chest and one to the forehead. The killing bears the hallmarks of a professional hit. A second murder of the same nature unleashes chaos and the case takes a terrifying twist.

An unexpected lunar eclipse. A poisonous fog. Statues that weep blood. History professor Juliet Harrington is convinced that the plague of disasters crippling the capital is caused by the Almanac of Forbidden Wisdom, a potent 16th century spell-book. Juliet fears that someone reckless is using the book - and she has little time left to stop them.

An unexpected lunar eclipse. A poisonous fog. Statues that weep blood. History professor Juliet Harrington is convinced that the plague of disasters crippling the capital is caused by the Almanac of Forbidden Wisdom, a potent 16th century spell-book. Juliet fears that someone reckless is using the book - and she has little time left to stop them.