A clever vole distracts a grumpy, hungry, and musical troll who threatens to eat him by teaching the troll new songs, and in the end they become good friends because two voices are better than one.

Eleven-year-old twins Miles and Beckett Fowl enjoy adventure and mayhem while helping a troll escape nefarious forces that want his magic.-- One week after their eleventh birthday, the Fowl twins-- scientist Myles, and Beckett, the force of nature-- befriend a troll who has clawed his way through the earth's crust to the surface. Unfortunately the troll is being chased by a nefarious nobleman and an interrogating nun, who both need the magical creature...

"A rhyming twist on the classic tale in which the goats help fix what is making the troll so grumpy in order to cross the bridge. Incorporates Spanish words and includes a glossary"--