How is past and present tense used in the magician's nephew?

In "The Magician's Nephew" by C.S. Lewis, past tense is primarily used to recount the backstory and events leading up to the characters' adventures, providing context and depth to the narrative. Present tense is often employed during moments of action or when characters experience immediate thoughts and emotions, creating a sense of urgency and engagement for the reader. This combination allows for a dynamic storytelling experience, blending reflection with vivid, real-time experiences.