Troubletwisters 4: 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, to the sound of the Salvation Army band outside playing'Hail the Conquering Hero Comes' or possibly'Roll Out the Barrel'.
Garth left Melbourne at an early age for Canberra (the federal capital) and stayed there till he was nineteen, when he left to drive around the UK in a beat-up Austin with a boot full of books and a Silver-Reed typewriter. He is now an award-winning author and one of the most influential names in contemporary fantasy.