Spike is hexed or something and shrinks to only a few inches in size. Xander, who works for two demons and makes little doll furniture for a living, takes him home. And fashions him his own little doll house to live in. He uses a cigarette carton to carry Spike around safely.
Help?
*slinks in*
The fic is called Three Inches by Druffine.
*ducks head and slinks back out*