The 15th actual island was Great Pumpkin Island, which came out for Halloween, 2010.
February 15th
alien revenge no it is not it is great pumpkin and alien revenge is the 21st.
The 15th island was Great Pumpkin Island (October 14, 2010), immediately preceding Cryptids (January 18, 2011).
The name of Poptropica's 15th island is "Great Pumpkin Island". Sadly, we never get to see the Great Pumpkin. But the solution to the island quest is at the related question below.
Great Pumpkin Island is the 15th Island of Poptropica, opened to general use in October, 2010. It stars the characters from the popular Peanuts comic strip in a short Halloween quest.----------------------------------------------------------There are no "cheats" as such on Poptropica, but there are solutions at the related question below. There are also special items in Poptropica at the related question.
Well... if it isn't clear its the shop with the words "charlie" on it
there is no lapso island on poptropica
There is no Candy Island on Poptropica. There is no known plan for a Candy island on Poptropica.
Poptropica Island is already unlocked.
The 6th island in Poptropica was Spy Island.
The 3rd Poptropica island was 24 Carrot Island.
It is Shark Tooth Island after Early Poptropica Island.