The key is nowhere on Counterfeit Island. You must complete the museum, and track down the thief, and after a scooter chase you will get it from Early Poptropica Island.
When you chase the thief on motor scooters, he gets away. But at the museum you receive a package that takes you off the island, where you receive a myserious key. The key opens the Inspector's house in the Countryside.
you go out the door!
It is in the countryside of counterfeit island.
The Black Widow (veuve noire) is posing as the police inspector, whose house is in the Country Side. It is on the far right of Counterfeit Island.
Behind the abstract painting.
On The Country Side Of Counterfeit Island
Its by the jazz house, or the tunnel. Its in a trash can.
The Inspector's house is in the Countryside, and she is never there. She is at the museum when the island quest begins.
Once you get the key from the curator, go back to Counterfeit island and use it at the Inspector's house.
Go back to Counterfeit Island and use it to open the Inspector's house in the Country Side. On the way, the street artist gives you a clue as to what to look for in the house.
She warns you that there is a notorious thief at work on Counterfeit Island, and gives you the key to the Inspector's house in the Country Side.
There seems to be at least one framed painting in the Inspector's house.
Nothing. I'm not sure why they are there, but they are not from the haunted house. They are from Counterfeit Island.