THE man behind a trio of time-travelling heroes gave pupils at two Harrow schools a flavour of his latest book today.

Alex Scarrow, author of the Time Riders series, spoke to children about his newest offering, titled The Doomsday Code, at Nower Hill High School, in Pinner, this morning and Rooks Heath College, in South Harrow, this afternoon.

The book is the third in a nine novel series in which the three protagonists must police time to preserve history.