Elizabeth Clare Prophet, the spiritual leader of the Church Universal and Triumphant, which gained notoriety in the late 1980s for its followers’ elaborate preparations for nuclear Armageddon, has died.

The church was still prepared for Armageddon in recent years and kept a bomb shelter stocked for 750 people deep in a forest near Yellowstone National Park.

The Lyons Press has just released “Prophet’s Daughter: My Life with Elizabeth Clare Prophet Inside the Church Universal and Triumphant,” which details Erin Prophet’s tumultuous life.

In the book’s preface, Prophet writes that one reason she penned the account is to expose the flawed thinking that led to her mother’s “apocalyptic prophecies” and the shelters built in their wake.

“Our actions were informed by the same sense of spiritual superiority that has led others to pace street corners with sandwich boards reading, THE END IS NEAR,” she wrote. “And the reasoning behind it is more similar to that of the other groups than I have been comfortable admitting.”