Roman Mysteries is a television series based on the series of children's historical novels by Caroline Lawrence. It is reportedly the most expensive British children's TV series to date at £1 million per hour. The series began filming in June 2006 and was first broadcast from 8 May 2007. The series is divided into "scrolls", each based on one book, starting with The Secrets of Vesuvius. The stories are told in the same order as the book series, except for book 6, The Twelve Tasks of Flavia Gemi...