Rebecca Stead. WHEN YOU REACH ME

Sixth Grader Miranda navigates her New York City neighborhood all by herself. She knows the safe places to go, the little tricks to avoid strange people and how to get her keys in her hand before she reaches her building. But some mysterious events occur that cause her to question what she knows. A crazy man begins hanging out on her corner doing weird things. Her best friend ditches her. Then she gets an unusual note that says:

“I’m coming to save your friend’s life, and my own. I ask two favors. First you must write me a letter...”

She doesn’t know who wrote the note or why. Then several other notes come to her. One mentions three events that come true over the following weeks. How could someone know what is going to happen in the future? And how is she involved?
This book is rich with details and wonderful characters. The setting is so well described, I felt like I was there in New York in the late 70’s. The story itself is so unique and intriguing. Every last detail is in place, which is no easy task with this kind of plot. I can’t say more about the plot without spoilers. This is just a smart, remarkable book that you will absolutely LOVE!!

I'm intrigued by this author & plan to read more by her. Here is her website.
This one looks awesome: