True Power of the Vampire

From: Martha
Description: You’ve collected amulets symbolizing the vampire’s powers. Each of them holds an echo of Dracula’s magic. But the main item that influences the Detective is still hidden from us.\n Let’s ask the City what the source of the curse is and help our friend! \n Bring some artifacts for the ritual.
Completed: I’m asking the City to show us the source of Dracula’s power!\n The artifacts are filling with energy, and the City is answering me! The true heart of Dracula’s influence, the source that affects the Detective so strongly... The City is showing us a Winged Book!