The Upside Down River: Tomek's Journey

Tomek lives a quiet life running his late parents' village store, which has everything you could ever need, and more. Then one day a girl visits. She asks Tomek if he sells something he's never heard of before: a drop of water from the magical River Qjar, which flows back to front and upside down. When he admits he has none, she slips away.
Tomek is desperate to follow the mysterious girl, and so he sets out on an incredible adventure. To find the upside down river, he must journey through strange and wondrous places: the Forest of Oblivion where monstrous bears roam, a meadow of deadly scented flowers, a long-hidden island cursed by a witch, and beyond...