While spying on his weird neighbor Miss Hortensia, nine-year-old Augustin Poussin discovers an intriguing place called Dream World where you can experience made-to-order dreams, just like going to the movies! Augustin chooses a dream about a knight. Transported to the Middle Ages, he must save the castle from a terrible bandit… who turns out to be his teacher, Mr. Poincaré, who’s always yelling at him! The dream ends with his victory. Then, the next day, his teacher leaves him alone for the first time ever. A coincidence?
Augustin can't wait to go back, but only "enchanters," people gifted with mysterious powers can do so. Will he get back to Dream World?