Das Schwert Im Stein by T.H. White

An orphaned boy known as the Wart grows up in medieval England under the care of Sir Ector and receives an unconventional education from the eccentric wizard Merlin; through a series of magical transformations and adventures he learns lessons about leadership, morality, and the nature of power while discovering humility and courage. Amid tournaments, courtly intrigues, and humorous misadventures, his destiny is revealed when he pulls a sword from a stone, setting him on the path to unite the kingdom. The story blends whimsical fantasy, satire, and philosophical reflection on education and kingship.