Deep in the forest, Theo has finally found the mysterious Doctor, whose medicine might save Mia's life. In exchange, Theo must find what the Doctor desires most and bring it back to him. Theo agrees without thinking, but how will he even figure out this riddle, not to mention find what the Doctor's looking for in this vast, forbidding wood full of fairies and monsters? The clock is ticking as Mia lies in her sickbed, and the unknown enemies who attacked her plot their next move…