Help From A Undead Spark

In a universe where Stiles isn't living in beacon hills but with is mother who didn't die but divorced her husband instead.
The same things happens but with a slight difference since Stiles isn't there
When the Darch comes to cause problems
Derek calls a friend he met in New York who is a spark to come and help them.
Will the spark be able to help them?
And since when does Derek have friends other than them ?

The first chapter will explain more and give more information so that it isn't confusing

!! WARNING !! this story does contain boyxboy, violence, swearing, rape, mentions of sex and character death.
IF YOU ARE UNCOMFORTABLE WITH ALL OF THIS PLEASE
! ! DO NOT READ ! !
IF YOU DO READ IT I CAN NOT BE BLAMED AS IT IS YOUR OWN RESPONSIBILITY THEN!

If you are reading please do enjoy it
I don't own Teen Wolf or any of the characters or actors the story plot here is:
FANFICTION meaning IT IS NOT REAL and the way the story goes is from my 'IMAGINATION' and is to be NOT taken seriously.