H. Madison 
Mysterious Island [EPUB ebook] 
The Final Chapter

Introducing The Final Chapter of a three book series. Glitter Girl and Water Girl had just become mission leaders. On a nice beautiful day in Hero World both the girls were just strolling down the streets when all of the sudden they are thrown into a secret island. While on the island they discover that their mission is to uncover the island secrets.
Want to read more of H. Madison’s books? Don’t miss ‘X-Finney Strikes Again’ and ‘The Most Dangerous Mission’.