No there is no bonus quest
yes
The mayor of the town on 24 Carrot Island will give you the Island Medallion when you complete the quest.
no
no there is not!
When you get back to the fairy queen, she tells you about the bonus quest. If you are not a member, simply keep going left until you are out of the woods.
You can't get small enough to go through the holes that you see unless you are a member doing the bonus quest for Vampire's Curse Island. In the bonus quest, you are turned into a vampire bat and can then get through the holes.
It's the bonus quest that makes you smaller.
The deserted studio was the old Grand Majestic Studios. The Warren sisters who own it show up in the Bonus Quest and want you to leave.
You cannot become tiny on this island. The little cave entrance that says you need to be tiny to go through is not part of the island. It's part of the bonus quest for members.
On each island in Poptropica, you must complete the island quest to earn the Island Medallion. In 2009, the completion also awarded 100 Poptropica credits per island.
That is not part of the 24 Carrot Island quest.
no because when you complete the island they give you a medal