A review by libscote
The Shape of Thunder by Jasmine Warga

4.0

This is a heart-tugging story of two girls--best friends, and now connected by a horrible act. Quinn's brother, Parker, brought a gun to school and shot Cora's sister, Mabel. It's ten months later, and both girls are still struggling. Quinn thinks they can figure out the secret to time travel, but she'll need Cora's help, which will be hard because they aren't speaking. Can they change the past?

This book just tugs at your heart over and over again. The author's note at the end is quite good.