Thrilling adventure stories introducing young readers (ages 8-2) to Christian heroes of the past.Karl Schumacher was fifteen when he came to the German city of Wittenberg in 520 seeking an education. He had been very fortunate that the esteemed university professor, Doctor Martin Luther, had taken him into his household as a servant. Luther's promise of tutoring Karl in exchange for his labor was the chance of a lifetime--until a poster on the church...