It’s (almost) mathematically impossible for two books to ever be the same
In every country, there are three locations where your little one could be hiding. Our magic computer chooses their locations at random, which means that if you buy a book for two children, it is very, very unlikely that they’ll be hiding in the same places (only a one in 177,000 chance).
Given that you can also choose how your child looks as well as personalising the cover, we don't have enough room on our calculator to work out how unlikely it is that any two books will ever be the same.