Summary
Parentlock. Protective!Sherlock. Sherlock is being stalked, Karrine, his 9 year old adoptive daughter (OC), is investigating by herself, and Lestrade is ran over by a car. Mycroft realizes he shouldn't parent his niece. And Ms. Hudson likes that Karrine knows she's not the house keeper. Creepy stuff. Based on An Unhealthy Obsession by The Blake Robinson. One shot.