Married Muiri and moved into the Windhelm house which is right next to the shattershields.

So now they have 2 moms, one a Dark brotherhood assassin, the other one - the person which hired her once to kill the neighbours daughter.
The house was the ex-base of a serial killer. You can still faintly smell the blood after the butchers work.

I gave Lucia and Sofie 2 daggers, Mehrunes Razor and Blade of Woe and as Sofie stands there stabbing and slashing the training doll. My most used follower Cicero - comments on the butchers work and screams "STAB STAB STAB STAB STAB STAB STAB!!!" as Sofie slashes away.

I think I may have created the most dysfunctional family in skyrim. 2 people affiliated with the dark brotherhood moving into the house next to someone they conspired to murder, which is also the bloodied house of a dead serial killer, giving their children daggers - one which belongs to the daedra lord of destruction. And twice a week uncle Cicero comes visiting, telling the kids bedtime stories.

Horrible. I know a good, even excellent Psy to help cure the whole family there before it's too late!!!

Edit: Very well Role played...

Well, I suppose you have made sure the DB will still be around when you're gone that way.