Shadowman. Punk Mambo. Eternal Warrior. Doctor Mirage. The supernatural protectors of the Valiant Universe unite for the very first time to stand against a terrifying ancient threat. No one is safe as Exarch Fane has his cold hands on the Book of Shadows. Master of horror Cullen Bunn and rising star artist Riccardo Latina present BOOK OF SHADOWS, a supernatural event that forms a brand-new team in the Valiant Universe... but will they be enough to stop Exarch Fane's wrath?