Night of the Ninth Dragon (Magic Tree House Merlin Mission)

Night of the Ninth Dragon is the 27th book in the Merlin Missions series, which is part of the larger Magic Tree House franchise by author Mary Pope Osborne. This children's chapter book continues the adventures of siblings Jack and Annie as they travel through time and space in their magical tree house. In this installment, they are summoned to Camelot, where they find King Arthur gravely wounded and the kingdom under attack. Their mission is to solve a riddle within one day to find a missing dragon, which is crucial to saving both the king and the realm. The book is part of a re-numbering system that distinguishes the more challenging Merlin Missions from the core Magic Tree House adventures. It is designed for experienced young readers who are ready for longer, more complex plots. The series is known for blending fantasy, adventure, and historical elements to engage children and encourage reading.