Alex Locke is desperately trying to hold onto the disparate threads of the complex web of time he has created. He travels to the First World War, living through the horrors of trench warfare in order to befriend a young soldier crucial to his story; then to the 1930s to uncover the secrets of a mysterious stage magician. He moves back and forth in time, always with the strange and terrifying Dark Man on his heels, gradually getting closer to uncovering the true nature of his destiny with the obsidian heart.
Mark Morris has written over twenty-five novels, including four books in the popular Doctor Who range. He is also the author of two short story collections and several novellas. His short fiction, articles and reviews have appeared in a wide variety of anthologies and magazines.,and he is editor of Cinema Macabre, a book of horror movie essays for which he won the 2007 British Fantasy Award.