You do not have to, the chest isn't important, what is important is the painting on the second floor! Click on the top right hand corner and you'll see that the black widow is actually the investigator! She'll take you down to her lair, tie you up and keep you captive!
But you'll find a way out, I did!
you can't open it at all
no apperently not
the chest is just a distraction
NO
you get it in early poptropica museum
you go to early poptropica's art museum and talk to the curator
You keep going to the right and you'll see how
it is hidden behind a painting in the inspector (black widows) house
its in the black widows hideout on the top level the house is in the countryside
First you travel to Early Poptropica and go into the Art Museum then go to the old lady.... She will give you the key to the Black Widows hideout wich is the old Country House
It is below the internet cafe, but you cant get in that way. The black widow will take you there when you break into her house and find the scream.
It doesn't have a key, it's there to distract you; you don't need to open it.
go farther in the island until u get a key (ps the key goes in the door)
In the Black Widows lair under the floor, but you have to peel back the painting on the second floor of the house you need the key to.