Very short:
The paradise is none. It's some weird energy being that created this island for the guests that come through the door.
Frank awoke, went through the door, wished to have a boat, got it from his bag and left the island.
Giggle ... well, you should use the browser search function and read Nicky's posts, that's too complicated and requires lot of interpretation.
Tilly and Bugz entered the house that started chaning again, found out that Angelica is dead and got caught in a pod that brought them to level 3 (seemingly). They decided to go back to level 1 to find the others and lead them to level 3. During the landing, Tilly broke her right foreleg, and Bugz is currently studying the pod to find out how to use it properly.
Elsa tried to leave the island by swimming, but the island being threw ice at her to prevent that. Ananagram used up all her energy once again and found out that the islands energy cannot be converted to healing energy.
The island being decided to put a cage around Elsa to get her to listen to him/her/it.
Atchou got very angry when he discovered what happened to Elsa. He and Thursday got caught in another cage.
The island being tried to explain (though nobody really listened) how this world works: The energy that visitors can manipulate is his/her/its own energy. So you eat food made of that energy, and your body works as usual and slowly mixes "real" molecules with "island" molecules.
The island being explained the main problem to Thursday: The island being's energy is limited to a sphere below the door, and if you leave this sphere, everything made of "island" energy vanishes. And if your body already consists of this energy, you simply dissolve. The island being did
not tell, that it needs some time until visitors reached the point of no return
