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I can't seem to find a book from my childhood, and I'm fairly confident 4chan can help me track it down. It was in French, so I don't know if that makes it harder. It's a puzzle-style book about a boy and his parrot helping a woman regain her memory, all set against a South American backdrop.

The book itself is very large (over 30cm on a side) with a mostly green cover.

I've tried to summarize the pages I remember:

A young boy's room; there's lots of stuff lying around, and you can see trees through the window. The kid has a parrot. An amnesiac woman arrives and asks for their help. They have to find a magic book without waking up the panther hiding in the room.

They're at an outdoor market of sorts, and there's a river. There's a cauldron. There's a recipe for a potion and another recipe—the one for the mixture inside the cauldron. The difference is that someone added a 13th leaf of... something or other. The clue is something like, "In some cultures, the number 13 brings bad luck."

The woman drinks it and turns into a giant. Everyone else is flying around her. The boy and the bird spot a trapdoor in her head and climb inside.

Inside her brain, everything is upside down; they have to find their way through.

There's a mechanism with gears connected to a lever. You have to figure out the right direction.

There's something involving a magic cube.

There's a chase scene in a maze. The immune system (?) is blocking the exits.

At the end, everyone celebrates because it turns out the woman is a queen or princess. There are golden animal statues. The wizard (who stole the other person's memory) escapes through a trapdoor at the bottom right.

Throughout the story, the "narrator" who provides the clues is a red Chinese dragon.

Thanks to anyone who can help me find this book :)