Medieval castles were the settings for royal feasts and epic battles. MIGHTY! Castles takes readers inside these ancient fortresses and explains how they provided protection during dangerous times. The Spectrum(R) Readers are the perfect Common Core aligned tool to support the development of nonfiction reading skills. Each leveled reader features high-interest informational content, exciting full-color photo images, and Common Core aligned comprehension practice focused on the development of critical thinking skills. Leveled to the respected Fountas and Pinnell and Lexile systems, these 32-page books are perfect for young readers who are ready to explore leisure reading on their own. This multilevel series is the perfect addition to any school or home library.