The Hutterites are quiet, hard working people, known for their natural medicines. They also live in communities, or Bruderhofs. Michael Bruhn, his younger sister Gudryn, and their widowed mother live in a castle in Moravia. When a doctor wearing ragged clothing heals Gudryn, Michael thinks he, too, must be a Hutterite. Later, Michael learns that this doctor in rags is the famous physican Paracelsus. Michael is impressed and begins to plan when he can also be a doctor. Then tragedy strikes. Join Michael as he tries to find his family again, and learn from the mysterious doctor in rags.

This story takes place in Ulverston, England, about 300 years ago. George Fox, an English religious leader and the founder of the Society of Friends, also called Quakers, lived during that time. Twelve-year-old Tommy Stafford and his sister, Celia, witness the violence and persecution brought on by the words and ways of Fox. His courage, calmness, and power with God influenced the whole family.

Martin Luther's son has a problem. What should young Hans Luther do when he grows up? How can he ever do anything important when he is constantly overshadowed by his famous father? Gradually he discovers who he is and how God wants him to live. Through Hans' eyes 9-to-14 year olds will learn to know Martin Luther not only as the great Reformer-preacher, but also as a father with a sense of humor and as a friend.

The story of all that happened as Menno went about preaching is seen through the eyes of Bettje and Jan. They too suffered hardships because their father was a night preacher. One Mennonite historian who read the story said that it was a ""lively, accurate, highly readable"" story of Menno Simons. The author was careful in adding details to see that they were in keeping with the way people lived and thought in those days.

John Wesley is a fiery preacher who is stirring up the people on the streets of London. One day, while peddling his father's wares, young Robert Upton meets Wesley and his life is changed forever. Robert and his father start going to Wesley's meetings whenever they can. Gradually, Robert begins to understand what Wesley's preaching is all about. As he allows God to work in his life, Robert finds that his own heart, like Wesley's, is strangely warmed.

When his father, one of the translators working on the King James Bible, is accused of treason, Nat finds himself involved in a series of baffling incidents as he attempts to discover the identity of his father's enemy.