Karn, Thianna, and Desstra travel to the Thican Empire to retrieve the Horn of Osius. Thica used to be divided into dozens of city-states. However a century ago, the city-state of Caldera discovered the Horn of Osius and used it to enslave the wyverns and conquer the rest of Thica.

Thianna meets her mother's side of the family, while Karn and Desstra befriend some Thicans who want to free their cities from Calderan rule. ( )

This third in a trilogy is a fast-paced, action oriented fantasy with fun characters that use their brains. Highly recommended. It has a glossary with pronunciations to help pronounce the names of the characters. ( )