Shadow and the Mirror

In this third and final book in the Amaranthine Trilogy, to save the dying vampire David, scientist Essie Thornton travels 500 years into the past, seeking a mythical cure. But her desperate mission unearths an ancient evil who follows them back to the present. Now, with time running out and a malevolent force manipulating their deepest fears, David and Essie must risk everything - their love, their lives, and the very fabric of time - to stop an apocalypse from being unleashed. But first, David must decide who he truly is: a monster born of blood and ruin ... or something more?