Sam Faulkner had no idea until recently that his father Allan was a time traveler! And he did not stay late on a business trip, but got into trouble - in the 15th century, according to a mysterious book found in the basement of an antique store. Sam finds a way to travel through time, but the catch is that he himself does not know where and in what era he will find himself... In the second part of the Book of Time trilogy, Sam goes back in time not alone, but together with his cousin Lily, smart and inventive . In such company, it’s not scary to meet a cave bear or end up in Pompeii - of course, on the day of the eruption of Vesuvius! - or compete with Chicago gangsters to help your great-grandfather out of trouble. But someone is following on the heels of the guys and is trying with all their might to prevent them from reaching the castle of Vlad the Impaler and saving Allan Faulkner... French writer Guillaume Prevost (born in 1964) is a historian by profession and, before engaging in literary work, wrote several scientific research and worked on the Histoire TV channel. In the Book of Time trilogy, he combines fantasy with historical romance - and the result is a fascinating adventure!