Est-ce qu'on peut tout expliquer?

In this last episode of the third series, Edgar is stressed because he really wants to help Farfouille. At the beginning, Farfouille yells at Edgar not to come out of his hiding place because Mrs. Keller is trying to trap him too but suddenly Farfouille arrives in the secret room and convinces Edgar to follow him. The two ghosts are captive! Sam and his family arrive early from their camping trip. Sam is confident that everything has gone well until a mini fairy appears in his room to give him some magic powder to immobilize Mrs. Keller and save the two ghosts. This adventure ends with Sam asking several questions to find out all the details of this unforgettable capture.