Kay Nyne 
The Green Man [EPUB ebook] 

Teen Jenny has had a massive row with her cheating boyfriend, & rather than drive home with him she takes a shortcut across country on foot. She knows that if she gets through a strip of forest called the Long Wood she will be almost home… but under the eaves of the forest she suddenly feels drunk and tired, and little does she know that she is about to come under the influence of The Green Man.