In the Valley of Wormwood: Cistercian Blessed and Saints of the Golden Age.

Thomas Merton (1915-1968) was a writer and Trappist monk at Our Lady of Gethsemani Abbey in Kentucky. His writings include such classics as The Seven Storey Mountain, New Seeds of Contemplation, and Zen and the Birds of Appetite. Merton is the author of more than seventy books that include poetry, personal journals, collections of letters, social criticism, and writings on peace, justice, and ecumenism.

Br. Patrick Hart was Merton's last secretary. In his earlier years at the monastery, he went by the religious name Br. Simon. He continued to foster Merton's legacy through the interviews he has conducted and through editing many of the collections of Merton's essays, journals, and correspondence.