- The three billy goats gruff are hungry for the sweet green grass on the other side of the stream. To get there, they must pass the big hairy troll who lives underneath the bridge and wants to eat them for dinner. Will the billy goats reach the safe side before the hungry troll makes them his next meal? Brought playfully to life by the rich collage illustrations of Roberta Arenson, this lively retelling of a much loved fable will delight children as they cheer on three sprightly billy goats who refuse to let anything stand in their way.