La Disparition de Mathilde

Lucy and Edmond wonder who the oldest inhabitant of the forest might be. They learn what a family tree is and calculate the age of the oldest tree in the forest.

Edmond and Lucy are lucky enough to be able to observe the nuptial dance of the great crested grebes, but to do so, they'll have to be discreet. Lucy discovers the usefulness of camouflage for certain species.

Ants have invaded the mice's house. By finding out what kind of ants they are and targeting what attracts them, the two mice manage to get them out without harming them.

Edmond loses his favourite pom-pom. With the help of Édouard and Lucy, Edmond sets out to find it. Together, they observe the behaviour of the forest's living species during winter.

Edmond and Lucy find that the forest holds no surprises in winter. To prove them wrong, Georges-Hibou concocts a hunt where every treasure discovered is a surprise from the forest.

Edmond and Lucy play storytelling with Geroges-Hibou's storystones. The game is simple: pick three stones featuring heroes, places and plots, and create a great story!

Edmond, Lucy and Mitzi listen as Mima tells them about the adventures of a fantastic, imaginary animal: the Cerplumard. Mitzi is fascinated; she longs to see one! Edmond and Lucy set out to make Mitzi's dream come true.

Edmond and Lucy discover a box containing flower seeds that belonged to their parents. Mima helps Edmond reconnect with the cycle of the seasons and entrust his little seeds to the earth.

Edmond and Lucy go in search of an amethyst and face a dilemma.

A snowstorm has collapsed Lucy's tree house. Thanks to the incredible properties of snow, Lucy finally builds the perfect place for a snowball fight!

Lucy and Edmond observe the behaviour of wasps and whipworm larvae to repair a bowl. Edmond congratulates them on repairing the object rather than throwing it away.

Winter comes early this year, and Mima still hasn't finished her "cold and snowy to-do" list. Edmond and Lucy do everything they can to help her, and at the same time discover how nature adapts to cope with the long winter.

It's a heatwave. Lucy knows the perfect place to cool off! She has to follow the clues to find her way back.

Edmond learns to appreciate the wind and the elements of nature to create a dragon from living and non-living elements.