Prima, a slave, convinces the master's son to teach her to read and write--a skill that comes in handy when a message arrives while the master is away from home warning of an impending volcano eruption.
Photographs, illustrations, and text offer an overview of volcanoes, describing how they are created, what makes them erupt, how volcanic eruptions have impacted human history, where the most active volcanoes are located, and other related topics.
Explains what causes earthquakes and volcanoes, looks at what happens during an earthquake and a volcanic eruption, and discusses the aftermaths of such events.