Tanks, spies and assassinations - history just got interesting! When teenager Jack Christie stumbles upon a time machine and a secret time-travelling society his life changes forever. Jack is catapulted back to the start of the First World War, where the assassination of Archduke Franz Ferdinand is about to throw the world into chaos. Should he intervene? Will he survive? The future of mankind is in Jack's hands. The first dangerous mission in the Jack Christie Adventures sets the pace at full throttle and the stakes as high as they go.
Johnny O'Brien was born in Edinburgh and studied history at Cambridge University. He got the idea for THE JACK CHRISTIE ADVENTURES when he came across his grandfather's medals from World War I. His debut and first book in the series, DAY OF THE ASSASSINS was longlisted for the 2010 Branford Boase Award and for the Book Trust's Booked Up 2010 programme. It was also shortlisted for the Children's Quills, a new award for historical fiction for children administered through the Historical Association. Johnny lives in Surrey, England, with his family. Visit him at www.dayoftheassassins.com.