Lucky Luke by ... Blutch Untamed

Lucky Luke enters a small town to drop off at the sheriff's office a young man who tried to steal Jolly Jumper. A few miles down the road, in the middle of nowhere, he suddenly finds himself threatened... by a little girl! Young Rose and her brother are currently alone in their cabin after the mysterious disappearance of their parents. Luke will have to investigate, but also take care of two particularly wild and undisciplined children!