Chapter 1: Introduction to Ruritania - The story is set in the fictional country of Ruritania. - The protagonist, Rudolf Rassendyll, is introduced as a young Englishman who is visiting Ruritania for an adventure. - Rudolf meets Fritz von Tarlenheim, a friend of his, who tells him about the royal family of Ruritania and their troubles.

Chapter 2: The Coronation - Rudolf attends the coronation of King Rudolf V, the ruler of Ruritania. - The king’s half-brother, Duke Michael, is jealous and wants to take the throne for himself. - Rudolf notices that the king looks ill and weak.

Chapter 3: The King’s Dilemma - Rudolf learns that the king has been drugged by a villain named Rupert of Hentzau. - The king’s advisers are worried about his health and the stability of the country. - Rudolf decides to help the king by impersonating him during public appearances.

Chapter 4: The Switch - Rudolf switches places with the king and takes on his identity. - He meets Princess Flavia, the king’s betrothed, and they form a connection. - Rudolf realizes that he has fallen in love with Flavia, but he must keep his true identity a secret.

Chapter 5: The Plot Thickens - Rudolf discovers that Duke Michael is planning to overthrow the king and take the throne. - He must navigate the dangerous political landscape of Ruritania to protect the king and the country. - Rudolf’s true identity is at risk of being exposed, and he must be careful not to be caught.

Chapter 6: The Battle Begins - Rudolf and his allies prepare for a battle against Duke Michael and his supporters. - They strategize and gather resources to defend the king and the throne. - The tension and excitement build as the battle approaches, and Rudolf’s bravery is put to the test.

Note: The summaries provided are simplified and condensed for an 11-year-old reader. The actual book may contain more details and subplots.