King of the Elephants Babar and his wife Celeste welcome new baby Isabelle.

One after another the children become frightened as they hear strange noises coming from the attic and imagine there is a horrible monster in the castle.

Follow the adventures of Babar's eight-year-old grandson Badou, as he along with his friends and family solve numerous mysteries and puzzles in Celesteville. Badou is a 'one-elephant stampede,' bursting with a sense of adventure. He laughs often and has inherited his grandfather's daring spirit, often plunging into a situation (or a hidden passageway or unexplored temple) fully confident that he can handle whatever he finds.