The Billy Goats Gruff

In this story, three goats appeared.
The youngest one is Beanie.He was very small and skinny.So he was always hungry.
The middle one is Bertie. He was crazy about sports, he has always his boal.
The oldest one is Beffer. He was big and strong!In their adventure, they came accross a monster called Troll.
I notice that the troll appears a lot of fairy tales. Recently, I watch the movie, "Enchanted" of Walt Disney.In this story, troll comes on!