From Mary Quirindongo
The Pact by Jodi Picolt
Two families have been best friends for years. The kids have been inseparable. Then one night a call comes in that Emily Gold is dead and Chris Harte is in the hospital. What unveils next is truly heart breaking. Everyone is trying to figure out what really happened. The book goes back and forth from past to present to show you how inseparable Chris and Emily were.