phenomen a book

In the ides of October Gemma (a self-proclaimed ace of all sciences) comes across a Giant - a tree that would make any human feel like an ant. The Giant comes in a 1+1 deal with a strange guy who speaks to the wind, grass and Dorothy - his beloved violin. The strange encounter leads to more strange occurrences. One day falling leaves transfer Gemma into an unknown world. Will she be able to survive in a world where the wind plays music, the grass has feelings and the Moon predicts the future? A world where dreams and nightmares have power to seep into real life?And a world where prayers are heard by so-called Gods?