Just click on the two pieces of mail for Joe Stockman: a postcard about his vacation and a letter from his employer, Globochem. That's all you need to do. To see him at Globochem, go to the Falafel stand (far right) and follow the owner as he makes a lunchtime delivery there.
The 35th island (August 2013) will be Virus Hunter Island.
The game saves by itself.
You go out the way you came.
That is not part of the island quest.
The exit of the hand is at the upper left.
You look for a piece of mail with the name Joe Stockholm on it.
He isn't named, so we don't know.
Well since the last island was Virus Hunter island, the next one will be Poptropilis Games 2013.
Select it from the island map. (Paid members only could play 8/29 to 9/12/2013.)
It is on the page farthest left, as you click to move to pages left or right.
Joe Stockman is "patient zero" who unknowingly carries a deadly virus that he was exposed to during a tropical vacation. You identify him from his discarded mail at the condos.
If you are stuck (cannot click to exit to the stomach), try rebooting Poptropica in your browser. If you are still stuck, try going to Home, then the Store, and get the Haunted House card, which is the only way initially to leave Virus Hunter Island. Several glitches were the result of programming errors that locked up browsers during the first month of the island's appearance.