Emma loves books. In a few days it will be her friend Sebastian’s birthday and Emma wants to get him the best present: a ‘bombatic’ book. The problem is that nobody knows what a bombatic book is. One afternoon she goes to Alicia’s bookshop and asks for a bombatic book, but Ana doesn’t know what it could be, and so she asks Emma for a clue. Emma says a bombatic book must have dinosaurs and Alicia shows her some amazing books. But Emma is not convinced and after thinking for a bit says that a bombatic book has to have dinosaurs and ballet dancers and… lots of other things. It’s going to be complicated but, will Emma find a book extraordinary enough to give to her best friend?