Marc Laidlaw is the author of six novels, including The International Horror Guild Award winner, The 37th Mandala. His short stories have appeared in numerous magazines and anthologies since the 1970s. In 1997, he joined Valve Software as a writer and creator of Half-Life, which has become one of the most popular videogame series of all time. He lives in Washington State with his wife and two daughters, and continues to writes occasional short fiction between playing too many videogames.