Katia and Maurice Krafft loved two things — each other, and volcanoes. For two decades, the daring French volcanologist couple were seduced by the thrill and danger of this elemental love triangle. They roamed the planet, chasing eruptions and their aftermath, documenting their discoveries in stunning photographs and breathtaking film to share with an increasingly curious public in media appearances and lecture tours. Ultimately, Katia and Maurice would lose their lives during a 1991 volcanic explosion on Japan’s Mount Unzen, but they would leave a legacy that would forever enrich our knowledge of the natural world.