After you beat the island, you play another island.
As to what to do after beating Black Widow, you have to go to the Museum Fantastique to get the Island Medallion from the curator.
There is no such thing as Confederate Island. Its Counterfeit Island.
There does not seem to be any lava anywhere on Counterfeit Island. (see related question)
You click on it. I beat the island.
To some, yes probably. However, Counterfeit Island is one of the harder and longer Poptropica islands.
beat the black widow
Just tell the truth.
Counterfeit Island is set on an unnamed French island.(see related solution question)
You beat her. She's in prison.
Wimpy Wonderland Red Dragon Island Counterfeit Island Mythology Island Astro Knights Skullduggery
Presumably in jail, although she makes an occasional appearance on Reality TV island.
Counterfeit IslandNo, Counterfeit Island is real. In fact, it'd be better named as "Art Island".
Nope. (see the related solution question below)