I've done almost all of the bimbos' world, up to the point where I'm supposed to straighten the rabbit's ears. The two superimposed spells don't seem to work on the rabbit's ears, but maybe that's because the big-nosed statue hasn't spoken yet. He still has the letter in his mouth, as I don't have the pitchfork to stick in his nose (Petronille has not visited this world, it seems.) So now I'm stuck in bimbo's world without being able to finish it. I know I can return to the house, but do I have to find another medallion or picture to visit other worlds?

You're absolutely right : the rabbit is waiting the words of Big Nose and it's impossible to finish this world before Petro comes
You have to go to the house and jump to another world
You don't need another medallion but another picture (one is in the house, another outside) et of course another password

Merci bien, mika. Je viens d'arriver chez les Nains!

(I'm posting this here since it's the last place I have posted.) I have now visited all four worlds, but have still not encountered Petronille. My inventory presently contains the following:

Indians blue token
Indians pink token

robots blue token
robots pink token

bimbos blue token

so it's obvious that I have unfinished business in bimbo world and in dwarf world. The trouble is that in bimbo world
I'm at an impasse without the pitchfork, and in dwarf world I can't speak to the chief's wife and the sorceress doesn't respond when I offer her the flour, honey, milk and egg for the potion. Can you give me a hint on how to proceed?
P.S. Just for the record, the other items in my inventory at the moment are Petronille's polo shirt, fragment of a page ("AME..."), Petronille's note ("It's a disaster!!!"), fragment of a page ("Ad per ang..."), giraffe milk, zebrass egg, magic wand, captured monkey, white flower, hand mirror, incomplete bra, colored gears and whalebone.

Don't worry, ziggy, you're not in an impasse.
Because of the way you visited the worlds, I think Petro did'nt come in Dwarves word. Try to go again in robots world, juste for a short time, and then come back in Dwarves worlds. I'm sure everything will be unlocked!

To be able to speak to the chief's wife, you must speak to the chief first (about Pétro).

The best hint to know how Petro travels, Ziggy, is... in the banner

I went back to the robots world (but to do what?) and I have revisited the dwarves world, but no luck! The sorceress still won't accept the egg, and I spoke with the chief long ago about Petronille, and he told me to talk to his wife. I couldn't talk to his wife at that time, and there is no longer an option for me to ask the chief about Petronille. I think I need a more concrete suggestion...

If you have read the uncle's diary, you may understand why you had to go to the robots world after the injuns world and before the dwarves world, Ziggy.
Now, if the Dwarves chief said that you must talk with his wife, you may do it (she is in the group, near the house).
And have you spoke again with the sorceress ? Now that Petro has past in this world, you have a new conversation subject with her.

Ziggy: one of the key points is this, when you wrote : "and the sorceress doesn't respond when I offer her the flour, honey, milk and egg for the potion."

This may be a case of the cart before the horse... If she doesn't respond, it's probably because she never gave you the recipe in the first place ! You're offering her stuff for a recipe she's not mentioned (you must have seen it in one of the threads, am I wrong?) The healer (that's what she is, really, and a raindancer too, she's multitasking) will give you the recipe only if Pétronille has been there already, because that's your winning argument (an "affair of the heart"...)

So, anyway, if you've visited the injuns and the robots, Pétronille must have been pushed to the Dwarves World, and you'll get your pitchfork eventually...

OK, I've finished everything in the dwarves world - cured the sick dwarves, thanked the chief and his wife, and received both the pink and the blue tokens. So now the only token I am missing is the last one in bimbo world. But when I go back there, Patty still refuses to take the caged monkey and give me the pitchfork. What else must I do to finish bimbo world and obtain the last token?

Two questions about the caged monkey :

- Did you use it to rob something ? If no, you have to do it first.
- Did you talk with Patty about the statue with a big nose. If you don't talk to her, she can't propose the pitchfork.

You'll obtain the last token at the very end of this world, Ziggy.
For the moment, you have to get the pitch. But why have you to get it ? Have you "touch" the nose of the statue ? It will open a new opportunity, a new subject of conversation with Patty.
And with Patty, don't be shy, too. Speak with her again and again

Well, I'm almost done: the dragon has been cured of his cold, but says he can't accept my offer of aid until I've collected something that I've forgotten. What can that be??? The bird puzzle won't move yet either. Any ideas?

Have you got the two tokens and the two pieces of "pink material" ?
When it will be OK, the dragon will allow you to move the bird puzzle.

Victoire! Je l'ai fini! Merci Razi, Axol, Grelot pour votre aide et votre patience avec moi. Ca c'est le plus beau jeu que j'ai joue'! Et maintenant je vais jouer Atlantzone. Au revoir!