Who doesn’t love a novel in which a doppelganger plays a central role? Filmmaker and novelist Neil Jordan (The Crying Game) here introduces two boys growing up on the opposite side of the proverbial tracks in 1960s Dublin. One of them, not insignificantly, lives next door to the former home of Dracula scribe Bram Stoker. This masterfully structured tale is both a gothic thriller and an intimate musing on childhood and loss. It’s also, it turns out, much more.