Because there's never enough time to say goodbye...

Sylvia knows that she's running out of time. Very soon, she will exist only in the memories of those who loved her most and the pieces of her life she's left behind.

 So she begins to write her husband a handbook for when she's gone, somewhere to capture the small moments of ordinary, precious happiness in their married lives. From raising their wild, loving son, to what to give their gentle daughter on her eighteenth birthday - it's everything she should have told him before it was too late.

 But Sylvia also has a secret, one that she's saved until the very last pages. And it's a moment in her past that could change everything...