This story can either be bought as a standalone or you can find it in the anthology "L is For".
At first I thought it was a little pricey to buy because there are so few pages but, as I read it, I found the story to be worth it.
Peach, in her usual style, fills the story with a lot of heart, anguish, and twists. Overall, it's written really well and is fairly perfect as short stories go.
If you want a quick read that packs a punch, I definitely recommend this.