"A difficulty for Hill is that many of the she celebrates will be no more than names to most readers. But she combats this by selecting details that bring them to life. , for example, co-founder of the , lived in picturesque squalor in an abandoned convent with an alcoholic wife and children who ran wild among the ruins. He eked out a living as a commercial artist and taught drawing to, among others, Gustave Flaubert, whose portrait he drew. ... Hill is a magnificent historian and commands a vast range of sources. Her great strength, as she showed in her witty book on Stonehenge, is that she is not inclined just to laugh at what seem ludicrous beliefs. Rather, she carefully unpicks them, showing what made them attractive to their cultures. Time’s Witness is a book to change the way you think about history."