What a good book! This book is a novel describing four days in Pompeii--two days before the eruption of Mt. Vesuvius, and then two days of the eruption. There are geological facts about volcanos and eruptions at the beginning of every chapter. The warning signs of the eruption are ominous. The engineering of the Roman aqueducts is truly amazing. Because we are surrounded by volcanos here in Seattle, this book hits home in many ways. This is a fast read, and well worth the time reading it.