The secret object is a key to the witchland!

There are 7 worlds in this story. Each has interactions to let us understand that somethings are not OK. about our main charachter (little girl Birce). When the interactions in one world are done. Our main charachter flies automatically to the upcoming world (second level of the game). A line is being drawn from the previous world to another while she is flying.
and when she comes to the 7th and final world. It is understood that the secret  object is a key which we drew by flying between the worlds.

Final Cinematique: Birce's outfit turns into the witch outfit (she becomes a witch), takes this key and opens a wooden door suddenly appeared. There she meets with her mother and other witches.