Books like Heart in a Box

When the Man with No Name breaks Emma's heart, she wants to die. But you never die from these things; you just want to. In a moment of weakness, she wishes her broken heart away and a mysterious stranger—who may or may not be totally evil—obliges. But emptiness is even worse than grief, and Emma sets out to collect the seven pieces of her heart spread across the country, a journey that forces her to face her own history and the cost of recapturing it, and leads inevitably to a confrontation with the Man with No Name himself!