In My TBR Stack:

Who Was Dracula? Bram Stoker's Trail of Blood
by Jim Steinmeyer
Tarcher Penguin
Trade Paperback

From the publisher's website:

The acclaimed author of The Last Greatest Magician in the World sleuths out literature’s iconic vampire, uncovering the source material—from folklore and history, to personas including Oscar Wilde and Walt Whitman—behind Bram Stoker’s lord of the undead.

Praise for Who Was Dracula?

“A fantastic, well-documented story.” —Library Journal (starred review)

“[A] well-researched and entertaining take on Dracula’s origin story.” —Publishers Weekly

“Who Was Dracula? chronicles the misadventures of Bram Stoker and his numerous friends and colleagues, both famous and obscure, hoping to unearth the recipe for a truly iconic character.” —San Francisco Book Review

“Who Was Dracula? is a book you’ll want to sink your teeth into.” —“The Bookworm Sez”