This story features 3 main characters- Fiona, Elliot and Adele. A mysterious goblin enters Fairyland (the land of fairies) and a fairy at Grumble-Gruff (the land of goblins)! How could this be! The goblins are always thinking of get rid of the fairies once and for all but now, there is a welcomed fairy in Grumble-Gruff. Both mysterious characters teach the people about music. A hidden clue had soon been uncovered by the trio. Are those mysterious goblin and fairy real - or have they discovered a new sort of creature. Read the book to find out!All Rights Reserved