Tom Canty (youngest son of a family living with the dregs of society in Offal Court) has always aspired to a better life, encouraged by the local priest (who has taught him to read and write). Loitering around the palace gates one day, he sees a prince (the Prince of Wales – Edward VI). Tom is nearly caught and beaten by the Royal Guards; however, Edward stops them and invites Tom into his palace chamber. There the two boys get to know one another, fascinated by each other's life and their uncanny resemblance. They decide to switch clothes "temporarily". Edward leaves in a hurry before the boys are caught at their game, snatching up an article of national importance (which the reader later learns is the Great Seal of England). Soon Prince Edward is trying to escape the brutality of Tom's abusive, drunken father; Tom, posing as the prince, tries to cope with court customs and manners. His fellow nobles and palace staff think "the prince" has an illness which has caused memory loss, and fear he will go mad. They repeatedly ask him about the missing "Great Seal", but he knows nothing about it. However, when Tom is asked to sit in on judgments his common-sense observations reassure them his mind is sound. Edward soon meets Miles Hendon, a soldier and n