"The Book of Time", originally released as "Le Livre du Temps", is a French children's fantasy novel trilogy written by Guillaume Prévost [fr; fa; it; pt] and first published in France by Gallimard Jeunesse.

The trilogy follows fourteen-year-old Sam Faulkner as he travels through time and around the world via a strange statue and some unusual coins with holes in them to find his missing father.

In a room he'd never seen before, he finds a strange red book called a stone statue with an odd circular indentation in it and a dusty coin with unreadable symbols.

Together, they learn more about the time-traveling statue and a man named Vlad Tepes, the inspiration behind the Dracula legends, who they believe is holding Allan in fifteenth century Wallachia.

Being himself a teacher, he bemoaned the fact that (at the time of the interview) the French national education system did not allow use of the book in classrooms, as he felt that there can be a theatrical side to instruction and that the "spoken word can be as evocative as the written one".

He explained that when speaking with his own students, he emphasizes the "human side of history" in that even when studying ancient events, one can make comparisons between historical figures and ourselves to find similarities, an approach he uses in the book series.

As a youth, he was strongly influenced by what he had read, and gives fond credit to works by authors such as Jules Verne, Sir Arthur Conan Doyle, Agatha Christie, Maurice Leblanc, and Gaston Leroux as being instrumental in how he now builds his plots.

[10] Kirkus Reviews notes that the story is written "in short, almost jerky vignettes" and lacks depth in plot and character development due to its being the first book of the series.

[14] Kirkus Reviews felt the series concept as a whole was solid, but feels its "execution is sparse, rough, erratic and uneasily similar to the sensation of skating on thin ice".