The year: 1914. The place: Sarajevo. The mission: assassination of Archduke Franz Ferdinand.
Jack Christie and his friend Angus are caught up in a major event that will dramatically change the future. Should they intervene? And, more importantly, will they survive?
This was the scenario painted by Johnny O'Brien on Tuesday when he talked to First Form pupils about his 'Jack Christie' time-travelling adventure series. Pupils got to handle artefacts from the First World War and to act out the assassination before chatting to Johnnie about his books.
Johnnie was kept very busy at lunchtime signing books: evidence of a very succesful visit.