Mark knows grief. Ever since the accident that killed his twin sister, Grace, the only time he feels at peace is when he visits the bridge where she died. It's not just the enormity of his loss--as her twin, Mark should have known Grace as well as he knows himself. Yet when he reads her journal, it's as if he didn't know her at all. Grace's best friend, Hanna, convinces Mark to complete Grace's bucket list from her journal as a way to remember her
