Letters of the first chapter:
The first letter to Fabrice is in the car, on the driver's seat, to the right of the bag.
The second letter is related to the story, and is impossible to skip.
The third letter is in the mailbox on the fence at Nora's house. In general, you will not be able to skip it, because otherwise you will not be able to get the key out of the mailbox.

Stickers of the first chapter:
Two are in the garden: one among the beds, the other to the left of the path to the house.
The third one hides to the right of the pond with the cat statues.
The fourth and fifth are in the hallway of the first floor - under the stairs and on a table with a mirror.
The last is on the coffee table in the living room.

First you need to go to the toilet on the ground floor. There is a box of books under the sink, which you need to interact with. Moving all the books, we will find the first letter behind the last one.

From this chapter, tapes begin to appear. The first one is in the chest of drawers in Mimi's room on the second floor. There are two more letters in the same chest of drawers.

Playing as little Mimi, we go to the dressing table near Nora's bedroom. The first sticker is on it. The second sticker is located on the side of the bathtub in the bathroom, which can be accessed from the same location.

The first word is waiting at the exit from the second floor, it is impossible to miss it.

The next word and the tape are in the same place where we took out the first letter at the beginning of the chapter - in the toilet on the ground floor.

The next sticker is waiting in the same place as in the first chapter - on the coffee table in the living room. Just behind it, near the flowers, you can collect the word.

There is a third tape on the kitchen table.

Where the sticker was hidden among the beds in the last chapter, now there is a word.
The last collector of this chapter, the sticker, lies near the river.

The first letter of this chapter is on the refrigerator door in the kitchen. The next one hangs over the workbench in the grotto.

The word can be found on the end of the bed, playing for little Mimi.

The first two stickers are back in Nora's garden: one to the right of the path, near a small potted tree, and the second in Grandpa's barn near the grotto.

The second word is among the beds, as in the last chapter.

The tape is lying next to the workbench. To its right, on the opposite wall, you can find the word.
Having picked up the scoop, we will automatically receive a sticker. And we'll get the next one when we help Nora with a plant. By the way, the sticker will match the plant that we choose, that is, there is variability.

On the way to the observation point, you can meet the word, very close to the icon with the eye.

Market

The next word is waiting on the market. When you go to get a baguette, approach the children who are playing marbles under the baguette sign.

Another sticker is in a drawer under the milkman's shop.

The tape lies on the table where the girls are sitting near the carpenter's shop. There is another word next to them, and another sticker next to the geese.

The next sticker is in the middle of the street near a flower shop.

The last sticker of this chapter lies in front of the vegetable shop, on an orange cardboard box. And next to it, a little higher, there is another word.

The first letter is on the kitchen table, you can find it when Mimi makes tea.

The next letter sticks out of the bookcase in the attic, under a blue balloon.

The first word lies inside the bend of the railway. Right next to him, a little to the left, there is a tape on the box.

Above, there is a sticker on the player under the speaker. The second one lies to the right, on the box.

Starting from this chapter, we can record sounds. The first sound of this chapter is a toy train.

The tape and the sticker are almost in the same place - on a barrel in the grotto.

From the place where we photographed Nora in the last chapter, you can now record sounds. Just two - the sound of balloons and the murmur of water in the river.
This will leave you with 3 missing soud spots in album, but worry not - you will record the missing ones in the next chapter.

The next sticker is on the beach, where we sailed for a picnic.

To get the next sticker, diving for cutlery, swim up to the stones at the bottom of the screen, go around them and find a sticker with a frog under the largest one.

We get the last seven words of the chapter when we run up the mountains, we will not be able to skip them. However, the last one - "height" - must be collected standing on a stone ledge before we climb up.

The first letter is on the record player in the attic, where there was a sticker in the last chapter.

The second one is in a jar in a hollow tree, it is impossible to miss it according to the script.

The tape is on the dressing table in Mimi's bedroom, and the next one is on the coffee table in the living room, next to the sleeping Nora. The first word is hiding on the side of a sofa.

In the garden, right in the middle of the path, we find a sticker.

Having reached the observation point near the house, we can now record four sounds: the crowing of a rooster, the ringing of bells from the church on the right, the sound of water in the river and the rustle of leaves from a bush near the house on the left. This way you collect all the sounds for precious chapter and the first sound for this one.

On the way to the kayak, going down to the path-transition between locations, we collect a word, and another one - on the shore, to the left of the stone path across the river, under a fallen tree.

At the observation point we can now record two new sounds: a cricket from a bright white gap between the trees and a bird behind us.

Having sailed to Renaud's lair, at the entrance, next to the fireflies, we collect the word. Tearing off the jar and filling it with fireflies will get a sticker.

Next are six words that we collect as we pass through the cave, you can’t miss them.

At the observation point in Renaud's lair, you can make four recordings of sounds: a dog, a river, donkey, and the rustle of leaves.

We will get the last tape by mimicing the sounds of a Coulobre.

We find the first letter in the pantry in the kitchen, between the bottles on the shelf.

The next one hid behind a flower, on a stool in Nora's room, to the left of the entrance.

The tape is on a table in the center of the second-floor hall, right under the window. We pick it up by playing for little Mimi.

We will get another tape by recording the sound of fried potatoes. The third cassette is on the garden table to the left of Nora's house. We'll take it when we leave the house with Nora, going on a picnic.
At the observation point near the house, you can record another sound.

On the way to the kayak, we will find a word and a sticker in the green tunnel. I can't explain where exactly, so check out the screenshots.

The next sticker is on the shore by the kayak, on the left. There is a word slightly to the right of it.

The next sticker is on the beach for a picnic. A little further away is the word.

We will get the last sticker by making a toy bump.

First, you have to collect only two letters. The first one is on Nora's bed, the second one is on the Mimis dressing table.

We collect the last tape by going into Nora's bedroom and leaving her a message.

We take the letter from the suitcase, which Renaud will hand over.

P.S.: screenshots are taken from the video.