In Paddington 2, what kind of book does Paddington want to buy for Aunt Lucy?

In Paddington 2, Paddington wants to buy Aunt Lucy a pop-up book.

The book is a special antique pop-up book depicting London. Paddington sees it in Mr Gruber’s antique shop and decides it would make an ideal birthday present for Aunt Lucy, who lives in Peru. Because the book is expensive, he takes jobs around London to save enough money to purchase it.

The gift leads to the film’s central mystery. The book contains a hidden clue connected to a secret from the past, and Phoenix Buchanan steals it before Paddington can give it to Aunt Lucy. Paddington is then wrongly blamed for the theft.

The pop-up book is not merely a present; it is the object that connects Paddington’s family affection, London history, and the film’s criminal plot.