The ten plagues, the parting of the Red Sea, the drowning of Pharaoh and his army. Barbara Sivertsen delved into the geological record and came up with a new theory that explains them all. She’s the managing editor of the Journal of Geology, and her new book is called The Parting of the Sea: How Volcanoes, Earthquakes, and Plagues Shaped the Story of Exodus.

Illustrations from The Golden Haggadah, courtesy British Library.