Fantasy Children’s Book Manuscript

I want to bring a middle-grade fantasy story to life for readers aged 9–12. The plot should feel epic enough to spark their imaginations yet remain accessible and age-appropriate in tone and vocabulary.

Key story elements I need woven together:
• Humans, animals, and mythical creatures interacting in a cohesive world
• A clear central quest or conflict that drives the narrative forward
• Themes of courage, friendship, and self-discovery without coming across as preachy

Please deliver a complete manuscript plus a short back-cover blurb and chapter synopsis. If you have suggestions on ideal word count or structure for this age group, include them in your proposal.