This fic isn't technically a crossover with Grimm (a show similar to Criminal Minds, if all the UnSubs were supernatural half-animal/half-human creatures), it simply is using the premise of the show. You don't need to have seen Grimm to understand; I will try to explain anything confusing as much as possible. I'll explain the different species at the end of each chapter, but if you want more information, the Grimm wiki is a great place to start and you can see pictures of them as well. If you don't understand anything and/or want more information, send me a PM.

"Good evening, Lauren," a female voice, devoid of emotion, remarked as Emily shut the door behind her as she entered her dark apartment.

Emily knew that voice. But she refused to show the slightest bit of recognition or even surprise. "You must have me mistaken – my name is Emily."

She could practically hear the eye roll. "Lauren, please. I'm your mother; you don't think I recognize you, no matter who you pretend to be?"

Emily sighed. "You'd think my running away would've been enough of a hint to let you know that I don't care."

"I'd suggest you take a second to stop being confrontational and listen to me."

"Or, you could get out," Emily replied flatly.

Getting annoyed, her mother couldn't help the sudden change; it only lasted a moment before she brought it back under control. "You'll help me or I'll tell the Family where you are and let them deal with you. They're no Coyotls, but I'm sure you remember how they feel about deserters…"

Emily glared at her for several long moments before replying harshly, "I'm listening."

"Tomorrow, you're going to get a phone call. That position with the Behavioural Analysis Unit you applied for has gone through. One of your co-workers is descended from a long line of Grimms and will soon be inheriting the responsibilities of his heritage."

Emily stopped her, once again angry. "You used your influence to get me a job!? That is not how I wanted to get that position! I want to be seen for my merits, not your…"

Her mother changed again, annoyed at the interruption. "The Section Chief works for the Family. And I suggest you don't interrupt me again," she hissed and the two glared at each other. "As I was saying, your job is to earn the Grimm's trust, find and take his key, then kill him."

Emily narrowed her eyes and shook her head distastefully. "If I already have the key, why do I have to kill him?" She didn't so much care the reason, she just wanted to further irritate her mother.

"You'll do it because I've told you to." Her mother smiled with false sweetness. "The Family expects me to come through if I am to be accepted among them again and I will not let you ruin this for me. And to make sure you don't let us down, the Section Chief will be monitoring you."

That did not sit well with Emily. "Why don't you just send one of your Reapers after the Grimm? That's what their whole hood-and-cloak operation is about, isn't it?"

"Those idiots?" Her mother rolled her eyes. "They don't know the meaning of subtlety. Of course the Grimm is going to know they're after them if they run around carrying weapons engraved with death threats towards Grimms and painting scythes on everything…"

"And if I don't succeed?"

"I don't need to tell you how important it is to the Family that we recover the treasure. Failure to assist us will be considered treachery on your part. My attempts to ensure leniency on your part from the Family can only go so far. I can't be held responsible for their actions against you should you fail to give them what they want."

At that moment, the door to the apartment opened again. "Emily, love, is everything alright? I heard raised voices."

"I was just leaving," her mother said nonchalantly, brushing past her, staring past them as if they were beneath her. "Oh, and Lauren…" She paused as she crossed the threshold. "A Mauvais Dentes? You live to find new ways to disappoint me, don't you?"

"Where's Morgan?" Reid asked, sniffing the air, unable to smell his cologne.

"He'll be back tomorrow," Hotch replied, leafing through his files. "His aunt's funeral was yesterday."

Rossi looked up from the papers he was reading, peering over the top of his glasses. "With his aunt dead…" He paused, glancing around at who was listening to the conversation before continuing, "That means he will be starting the change. He won't be himself when he returns – I don't think the change is easy for anyone. As I'm sure you all know."

Coyotl: (Pronounced kai-oh-till) A coyote-like creature. They tend to kill anyone who tries to leave the pack.
Mauvais Dentes: (Pronounced mow-vay don) A saber-tooth tiger-like creature.