Shadowman. Eternal Warrior. Punk Mambo. Doctor Mirage. The supernatural protectors of the Valiant Universe unite for the very first time to stand against a terrifying ancient threat: Exarch Fane. No one is safe as the fearsome foe has his cold hands on the Book of Shadows. Master of horror Cullen Bunn (Venom) and bone-chilling artist Vicente Cifuentes (Justice League Dark) present BOOK OF SHADOWS, a supernatural event that forms a brand-new team in the Valiant Universe. but will they be enough to stop the wrath of Exarch Fane? Collecting BOOK OF SHADOWS #1-4.