The two heads of a troll have different names, different personalities and different views on how to lead their life. Joel wants to frighten people and destroy property; Jethro prefers tending the turnip patch and treating people nicely. After Joel spear-heads a rampage that destroys a castle, the troll is required to rebuild it. For this task, it turns out that two heads are better than one; both heads find construction satisfying, and the troll establishes a career as a castle builder. The Jekyll/Hyde struggle between good and bad is a classic theme. Unfortunately, Peet hasn't developed it beyond the mediocre. The story is strained and disjointed, and the use of the plural to refer to the troll just sounds awkward, and is distracting. The pictures are garish and the colors abrasive.