The World Without Us — Robin Stevenson

What do you do when someone you care about wants you to follow him to a really dark place? Do you pull away? Do you help plan the trip? Or do you put your own life on the line in the hope that love will coax your friend away from the precipice? When Mel meets Jeremy, she thinks she has finally found someone who understands her, someone who will listen to her, someone who cares. But Jeremy has secrets that torment him, and Mel isn't sure she can save him from his demons. All she knows is that she has to save herself.

Set in Florida, against a backdrop of anti-death-penalty activism, The World Without Us examines one girl's choices in a world where the stakes are very high and one misstep can hurt -- or even kill -- you.