Missing, Presumed Evil

Sean Williams writes for children, young adults and adults. The author of over forty novels, ninety short stories and the odd odd poem, his work has won awards, debuted at #1 on the New York Times bestseller list, and been translated into numerous languages. His latest series are Troubletwisters, co-written with Garth Nix, and Twinmaker, which takes his love affair with the matter transmitter to a whole new level.

Garth Nix was born in 1963 in Melbourne, Australia. A full-time writer since 2001, he has worked as a literary agent, marketing consultant, book editor, book publicist, book sales representative, bookseller, and as a part-time soldier in the Australian Army Reserve. Garth’s books include the award-winning fantasy novels Sabriel, Lirael and Abhorsen and the science fiction novels Shade’s Children and A Confusion of Princes. His fantasy novels for children include The Ragwitch; the six books of The Seventh Tower sequence; The Keys to the Kingdom series; and with Sean Williams, the Troubletwisters books and Spirit Animals: Blood Ties.

More than five million copies of Garth’s books have been sold around the world, his books have appeared on the bestseller lists of The New York Times, `Publishers Weekly’, The Guardian and The Australian, and his work has been translated into 40 languages. He lives in Sydney, Australia.