Missionary families have a high level of commitment to their faith. What, then, would cause a child from such a faith commitment to turn away from this heritage? Factors identified by research as mediating religious doubt include problematic family relationships, adverse life events or stressors, and incongruities leading to questioning. This qualitative study examines the experiences of 16 adult missionary children (AMK) who said they left their parents' tradition of faith, and who were willing to talk about their MK experiences. The 16 participants had a mean age of 47, came from 13 evangelical missions, and lived on three different continents. A semi-structured interview was used to explore various facets of their MK childhood to identify significant patterns. Those interested in religious formation and doubt within the context of committed religious families would be interested in this book.