The female Chief Inspector is first at the museum entrance. The "shady guy" appears when you finish the Underground Tour.
Only later do you begin to wonder who they really are.
(see the related question)
Counterfeit IslandNo, Counterfeit Island is real. In fact, it'd be better named as "Art Island".
there is no mansion on counterfeit island
You do not die on Counterfeit Island.
If you're talking about in counterfeit island, then after you get that job, you go into the forgery detective lab and finish the two "stations" there.
There is no camera as an item on Counterfeit Island.
You will have to swim for it : the lighthouse is on Big Nate Island, not Counterfeit Island.
you go back on counterfeit island
Yes. Counterfeit Island was the tenth, and Reality TV is the eleventh.
There are no snowballs on Counterfeit Island. (see the related question)
the curator isn't on counterfeit island... shes in early poptropica...
it is in the underground at counterfeit
There is no safe on Counterfeit Island. There is an underground hatch that has a Dragon Face lock on it.