Les Pyjamasques et la soupe à la citrouille (English: Pajamask and pumpkin soup) is the eleventh book of Les Pyjamasques which was published by Éditions Gallimard on September 22, 2011.
Lilifée is there and, as always, Les Pyjamasques bicker to play with her. In order to have peace, Lilifée suddenly has an idea. She launches a challenge whose winner will necessarily be the bravest of the three. As a reward, he will have the great honor to accompany her. This is how Les Pyjamasques go, behind the wood, to the old vegetable garden where sits a cauldron filled with a famous magic soup.
This is the third appearance of the classic counterpart of Lilifée.
Despite being the eleventh book of the series. It was made after La petite sœur des Pyjamasques, making this book technically the twelfth book of the series.
While talking to the one of the pumpkin monsters on dealing with Lilifée, Les Pyjamasques said "Say, pumpkin head, it would be fun to scare the hell out of a *****?". This is the first use of swearing in Les Pyjamasques and the first use of the word "hell", which could be suggestive/inappropriate for English readers.