Most trolls have no natural magical ability. However, Christine does. Enchanted powders swirl up when she walks by. Charms glow. What happens when Christine tries to direct her magical powers? Nothing. Nada. Zip. Something blocks Christine from reaching her full magical potential. But what? "The Princess Troll"--the second novel in The Seattle Trolls trilogy and the delightful continuation "The Changeling Troll"--follows...