A/N: As you, dear reader, already know, Stephanie Meyer owns Twilight and I do not.

***** Prologue *****

When Alice opened the door that afternoon, the last person she expected to see was her sister-in-law.

"Bella, to what do I owe the pleasure of this unexpected visit?" She inquired, one perfectly sculpted eyebrow arched with just a tinge of acid lacing her voice.

Bella's face remained calm and composed, betraying no emotion, as she handed the woman a stack of cream colored envelopes, "I just wanted to drop these off."

Alice leaned against the open doorway, fake sincerity dripping off her tongue when she replied, "Is this a gift? For me? Sure you have the right person?

Bella sighed. Things had long grown cold between the two women, and it seemed being civil to one another was asking too much.

"They're letters, Alice. Just read them," was Bella's clipped reply as she turned around and made her way back to her van.

"I know what's going on," Alice shot towards the brunette walking away from her.

Bella stopped for just a moment before continuing on to her vehicle.

"I know about you and Jasper. He may delete your texts and hide your emails, but I know about the two of you."

Bella briefly stopped her descent into the driver's seat and stared into the eyes of the woman who used to be her best friend, "That's the problem, Alice. There's so much you don't know. Read the letters."

And with those final words, Bella got into the van, backed out of the driveway, and left without another glance at the woman watching her exit, clutching a stack of handwritten letters in her ever tightening grasp.

Dear Alice,

I certainly never thought we'd find ourselves in this situation. We were best friends, weren't we?

It may sound cliché, but I didn't intend for this to happen. We were simply living life, day to day. You had Jasper, I had Edward. Family dinners on Sunday, our kids playing at the park and celebrating birthdays and holidays, side by side.

But then you broke him.

In the beginning, I'll admit I felt some guilt. Whether it was guilt at going behind Edward's back or taking a man who didn't belong to me, or maybe a little of both, I can't say. All I know is, after I became a witness to the things you did to tear him down again and again until there was nothing left of the man you shared your wedding day with, the guilt disappeared. He was fair game. If you couldn't appreciate him, then I would. If you couldn't pay attention to him, then I would. If you couldn't love him, it didn't matter, because I did.

So, count this as me doing you a favor. Call it serving penance for my sins or an act of charity, but I'm going to teach you how I stole your husband. One lesson at a time, I'm going to show you how you made it so easy for me to occupy the place you once held his heart until all his confessions of love were directed my way. We'll say this is a last ditch effort I'm making to try and help you see the error of your ways so you can possibly change and salvage this sham of a marriage you have.

Take my advice. Ignore my every word. It's your choice. But the clock is ticking and when time runs out, if you're still not hearing me, I'll take him. For good. No saying I'm sorry, last minute confessionals, or pathetic attempts at sympathy will work.

Consider yourself warned.

Your Teacher, His Mistress,

Bella