Title: Metastasis
Author: bookgodess15 
Rating: PG-13
Pairing: Spike/Xander
Summary: When Spike followed Xander back to Sunnydale, he was expecting the same simple, sweet-smelling boy he'd spent the summer with. Enter the Basement of Doom, long-held Harris family secrets, and a mysterious group calling themselves the Initiative.
Disclaimer: I don't own Buffy & Co.
Notes: Written for fall_for_sx 2011 at the trickery and manipulations behest of my friend. Beta'd by the absolutely wonderful, fantastic lady_of_scarlet who is literally a goddess for putting up with all my whining and new-fandom insecurities and past-promised-deadline bullshit... This story would not be without her.

Xander was four when he met his first Master Vampire...