JUSTIN RICHARDS has written more books than he can remember. He has also written audio scripts, a stage play, edited anthologies of short stories, and founded a media journal. Justin's books include The Death Collector, The Chaos Code, The Parliament of Blood and the series The Invisible Detective, Time Runners, and Agent Alfie. He is also Creative Director of the BBC's best-selling range of Doctor Who books, and has written a fair few of them himself. Justin lives with his family in Warwick.