If your looking for a new song to along with this story how about this.....
(Sing it to the tune of: 'The Grand Old Duke Of York')
Three little goats went walking,
one lovely summers's day.
They crossed a bridge to get some grass,
but a troll got in their way!
They tricked the troll and down he fell,
In to the water wet.
Now three little goats are getting fat,
and the troll hasn't come back yet!
Image taken from: https://www.geocaching.com/geocache/GC4ZYQN_the-billy-goats-gruff