he is under the docks if you are trying to catch him he is at the jazz cafe.
You use it.
it's on the countryside
u get it somewhere on the island idk where if i did i would go there
The key fits the Inspector's cottage in the Countryside.
Once you get the key from the curator, go back to Counterfeit island and use it at the Inspector's 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.
You now have a key that fits a lock on Counterfeit Island, and you haven't found a key to the lock on the Inspector's house, so...
You go to the inspector's house - the key unlocks the door.
The Inspector's house is in the Countryside, and she is never there. She is at the museum when the island quest begins.
The key to the Inspector's house is given to you by the museum curator after you chase the thief on Counterfeit Island. The sign is rather obvious, since "Veuve Noire" is French for Black Widow (it is misspelled 'niore').
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.
The painting turns up in the Inspector's house in the Countryside.