The Black Widow key card is dropped by the art thief (shady guy) when he makes his escape by boat.
Although probably granted some leniency, he is off to prison with the Black Widow. He is not seen anywhere on the island after the game ends.
the guy is beside the fishing boat but first take the tour inside the tunnel and exit from the door at the end>
Go back to the museum. You have a package waiting for you there.
The gost guy Tim in the haunted manshion
you scoot over to the shady guy and he will undo them for you
the jazz place
you show them the picture of shady guy. you are welcome
Make small circles with your mouse as you move it towards the shady man to Scoot the chair.
Thinks he's cool: Big Nate on Big Nate Island. Cool but not to be trusted: Shady Guy on Counterfeit Island Director D on Spy Island
its on the edge of the dock
under the palm tree hope you complete it!
At the end of the tunnel.
You talk to the other guy.
Though probably granted leniency for his assistance, he is probably sent off to prison with the Black Widow, but cannot be seen after you have completed the island.
When he leaves he will leave it on the docks
On Counterfeit Island he's at the art gallery on Early Poptropica Island.