You talk to the mime and ask him if he had seen the thief yet then he will make music notes and you will need to go to the jazz cafe to catch him he will then run off when you have talked to him. He will go out the window and you play the scooter game thing to catch him then you would be at the docks and he would jump into the boat and you will notice that he had dropped something and that would be the key card with the spider on it.
If your talking about Counterfeit Island then you get the key and go back to the museum on Counterfeit Island
Early Poptropica.
After you chase the guy with the scar, you will see that he dropped his key card. Pick it up. This is on Counterfeit Island.
There is no key card in skullduggery island.
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 key is not on counterfeit island. Go into the mueseum and the person on the left will give you a package. then go to early poptropica and there will be a lady standing on the left.
It will.
you get in the boat and sink
you have to get the key card and then go into the museum. you will get a painting. examine it. do what it says go to early poptropica island. go in the pop art museum go all the way left and there she is.
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...
some one gives it to you!!
Once you get the key from the curator, go back to Counterfeit island and use it at the Inspector's house.