Book Description from amazon.com
Life should be perfect for Charlie now that his parents have been reunited. But mystery and adventure always find him. This time Asa, a fellow classmate who changes into a beast at dusk, and Charlie's sometime-enemy, is missing. His parents seek out Charlie for help. Manfred is holding Asa captive in a forest cave and now Charlie needs the help of the Flames to rescue his classmate.
Manfred has also taken the new endowed student, Dagobert Endless, under his wing and Charlie is highly suspicious of the pair. Can the Flames and Charlie rescue Asa without being caught by Manfred and Dagobert?