Pick up a teabag and some tea leaves from the desk, then combine these in your inventory. Next pick up the kettle from on top of the stove to the right - you will automatically fill it with water and boil it. Put your teabag into the kettle Leaf. Now drink the tea in your inventory Tea Time. Now you can leave by heading to the right.
Pick up 4 different types of plant from along the path. Pick up the leftmost mushroom, and you will offer it to the boar, who has a broken basket. Combine the twigs and straw, then give this to the boar to repair his basket, and you will receive a mushroom Boar.
Continue right and you will find a closed door. Just to the right, move a leaf so that you can pick up an acorn cap. Further to the right, get the piece of paper. Return to the door and use both the acorn cap and the piece of paper on the telephone. Examine this telephone and notice it has a squirrel shape on top. Dial the combination for the squirrel (leaf, leaf, flower). The door will open and you can go through.
In your inventory, combine the other 2 forest plants to make a green bird. Place this in the clock to the left Secret Clocks. Talk to the squirrel and give it your mushroom. Leave the house again.
Just to the left, move a yellow leaf, then examine the strange mushroom with the rain cloud over it Magic Mushroom. Multiple other mushrooms will now spring up around this area Rain. Search all the way back along the path and you should be able to find 10 mushrooms, some hidden behind leaves. Once you have collected them all, return through the door again.
Give the red spotted mushroom to the squirrel Medicine. Now examine the poster on the wall. To solve the final puzzle you need to provide mushrooms that add up to a total value of 25. A small mushroom is worth 1, a medium mushroom is worth 4, and a large mushroom is worth 9. Add 3 small, 1 medium and 2 large mushrooms to the lines on the right, then pull the lever Squirrel. Now you can head to the right.