There is no key to find. You will get it when the time comes.
After you chase the thief, you will be going to the Art Museum on Early Poptropica. You will talk to the curator and she will give you the key.
There is no key to the chest, and it never opens. It is a distraction.
first you get a package to meet the creator on Early poptropica at the museum and she gives you the key
You go to the inspector's house - the key unlocks the door.
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...
The art thief is back on Counterfeit Island. As part of Counterfeit island, you don't need to do anything in Early Poptropica except get the key from the curator at the Pop Art Museum, then return to Counterfeit Island to open the Inspector's house.
You will receive a key to the Inspector's house, and find the stolen painting there. Then you will also find the Black Widow...
There is no key. Go upstairs to find the painting.
You use the key from the Curator to unlock the Inspector's house in the CountrySide.
you go to early poptropica, and go inside the gray art place. there you talk to the lady in purple and get a key. the key goes to the locked house back in counterfeit island.
The big house on the country side.
Once you get the key from the curator, go back to Counterfeit island and use it at the Inspector's house.
go farther in the island until u get a key (ps the key goes in the door)