The surname of the four siblings who enter Narnia in C.S. Lewis’s first published Narnia book is Pevensie.
Peter, Susan, Edmund, and Lucy Pevensie discover Narnia through a wardrobe in The Lion, the Witch and the Wardrobe. The siblings are sent away from London during the Second World War and stay in the country house of Professor Kirke, where Lucy first finds the passage into the other world.
The Pevensies become central human figures in the early Narnia stories. Peter and Susan are called High King and Queen, while Edmund and Lucy also receive royal titles after helping defeat the White Witch. The family’s appearances vary across the series, and not every book centers on all four siblings.
Scrubb is the surname of Eustace, who appears later. Kirke is the professor’s surname, and Polemarch is associated with another Narnian character. Those names can cause confusion when readers remember the broader cast rather than the original four children.