The last letter : a novel
(Book)

Beckett, a solider in Afghanistan, falls in love with Ryan's sister through her letters to him and, despite feeling guilty over his friend's death, seeks her out to fulfill his promise to watch over her.

Beckett, If youre reading this, well, you know the last-letter drill. You made it. I didnt. Get off the guilt train, because I know if there was any chance you could have saved me, you would have. I need one thing from you: get out of the army and get to Telluride. My little sister Ellas raising the twins alone. Shes too independent and wont accept help easily, but she has lost our grandmother, our parents, and now me. Its too much for anyone to endure. Its not fair. And heres the kicker: theres something else you dont know thats tearing her family apart. Shes going to need help. So if Im gone, that means I cant be there for Ella. I cant help them through this. But you can. So Im begging you, as my best friend, go take care of my sister, my family. Please dont make her go through it alone. Ryan