Peter appears in three of the seven books; as a child and a principal character in The Lion, the Witch and the Wardrobe and Prince Caspian, and as an adult in The Last Battle.

He is mentioned in The Horse and His Boy, in which he is away on the northern frontier fighting giants, and in The Voyage of the Dawn Treader, in which he is studying under the tutelage of Professor Kirke.

Peter is the eldest of the four Pevensie children and shares his adventures in Narnia with his sisters Susan and Lucy and with his brother Edmund.

105–6) Pevensey, on the southeast coast of England, is the site of a medieval castle that figures importantly in British history at several points.

In Rudyard Kipling's Puck of Pook's Hill (1907) at least one of the characters refers to Pevensey as "England's Gate", which the celebrated wardrobe in Lewis's books quite literally becomes.

55) This is caused by Edmund's revelation of his deceit when, upon entering Narnia, he says; "I say ... oughtn't we to be bearing a bit more to the left, that is, if we are aiming for the lamp-post?

In the American editions of the books on which the 1979 animated film was based, Lewis changed the chief wolf's name to Fenris-Ulf, after a figure from Norse mythology.

After the defeat of the White Witch Jadis, self-styled Queen of Narnia, and her evil allies in the Battle of Beruna Ford, he is crowned to the Clear Northern Sky by Aslan as His Majesty King Peter the Magnificent, High King of Narnia, Emperor of the Lone Islands, Lord of Cair Paravel, Knight of the Most Noble Order of the Lion.

This marks the end of the hundred years of winter and the reign of the White Witch, and is the beginning of Narnia's Golden Age.

In order to stall the war long enough for Lucy to find Aslan and awaken the Narnians, Peter claims the right to a one-on-one duel with the Telmarine king, Miraz.

After the Pevensie children help defeat the Telmarines, Peter formally gives Caspian the authority to rule a free Narnia.

After attending a dinner with the other Friends, Peter and Edmund went to London to retrieve the magic rings that Professor Digory Kirke buried in the Ketterleys' yard, hoping to use them to get Eustace and Jill to Narnia.

Both were waiting for Lucy, Eustace, Jill, Digory, and Polly at the station platform when the train crashed and killed them all, temporarily transporting Jill and Eustace to Narnia until the end of the world, upon which they make their way to the real Narnia, or heaven, and are reunited with Peter, Edmund, Lucy, Digory, and Polly.

After Tirian passed through the stable door and saw Tash for the first time, Peter calmly ordered the demon to leave with his prey.

As the traditional first Bishop of Rome, St. Peter and his successors, are primus inter pares, or first-among-equals with the other leaders of the church.