Katherine Paterson's 'The King's Equal' is a magical fairy tale about a proud and arrogant prince named Raphael who cannot become king until he finds a woman who is his equal in beauty, intelligence, and wealth. The story follows a humble and wise young woman named Rosamund, who lives with her goats in the mountains, as she is brought to the palace to meet the prince's impossible challenge. Through a series of clever tests and genuine kindness, the tale explores the true meaning of worth, equality, and leadership.