The Questful Quails and the Golden Griffins both arrive on a strange island not found on Globleo map and soon they have to fight off some strange creatures on the island. 

SYNOPSIS:

When the Questful Quails and the Golden Griffins arrive on a strange island, they discovered that it's the same island that May used to grow up on. Soon they also discover that there are monsters on the island and trapped people on the island too.

KING OF THE WORLD BOOK 1 CHAPTER 6 THE STRANGE ISLAND