he is at the music store after he steals the painting
At the Docks on Counterfeit Island.
The mimes in front of "Bobos Clown Shop".
Jump on the light hanging above the Scream to catch the theif and wait for the "investigator" with the police.
You talk to the officer when he's at the clown store, after the robbery. You'll get the time card and be able to use it to catch the theif!
Go on www.youtube.com, search in counterfeit island walkthrough. It might help.
First go to skullduggery island,take your ship to a island called Keys World island and you will find the key of the chest on counterfeit island!;)
Find out for yourself
You find him in the clown shop.
Counterfeit Island
Counterfeit IslandNo, Counterfeit Island is real. In fact, it'd be better named as "Art Island".
In Counterfeit Island you go and find the person who stole The Scream that's the painting that gets stolen at one point. Then you must find the criminal who stole it.
there is no mansion on counterfeit island