Help!

This is a general call for help. I'm driving myself up the wall because I can remember neither the title nor the author of a book that I wanted to add to my list for the book meme. I'll post the meme without the name of this book but knowing the title would be a salve for my sanity. 

So, the book was published about 18-24 months ago. It had a green cover with the image of a lake on it. It was about a teenage girl who lived in Canada around 1900. She came from a very poor family and her mother had died. She went to work in a hotel where she discovered a letter that led her to investigate the death of a young woman in the lake in the hotel grounds. She desperately wanted to attend college in New York(?) she gained a place but initially had to turn it down in the face of her father's demands that she stay and look after her siblings. 

Any one know it? 

ETA: I remembered! After two days of racking my brains the title of the book came to me during a jaunt up to Somerfield: A Gathering Light, Jennifer Donnelly

It feels like I selected very few here considering I seem to have spent a good deal of my life with my nose in a book. 

I was tagged for this by vivnow, I'm not tagging but if you want to play - copy this list, highlight the books that you have read and add five of your own.

( Book Meme )