La cabane dans l'arbre - Le beau voyage d'un dessin - Une bouteille à la plage!

Dani wants to find out why his old apple tree is no longer bearing fruit. Oscargot, Lynace and Sam Salamandre want to make a product to offer at the next day's earth market.

Dani sprained his ankle and can't fulfill his duties as marsh guard. Féeli Tout enlists everyone to lend a hand and keep the marsh in order.

Oscargot and his friends make little boats to sail on the little lake of the Chocolat River with Dani. Once there, they discover that the lake level is at its lowest.

Dani comes to repair the swing attached to the big oak tree, while Oscargot and Lynace investigate the mysterious disappearance of the paperbacks from the kiosk-library.

Féeli Tout and Oscargot are planning a campfire party, drinking hot chocolate and telling scary stories. But, two of the friends don't show up for the party.

Féeli Tout must urgently organize the arrival of a new family in the marsh. Dani offers to help by letting them stay with him. Oscargot wants to start all the activities planned for his summer vacation on the same day.