Toys Eleven and Twelve
Spike is unwillingly pulled into the fight against Glory in order to protect Xander and Dawn
Toys Thirteen and Fourteen
Now master of the hellmouth, Spike finds that his supposed allies are more trouble than any enemy.
Warnings: Dom/sub, slavery, exhibitionism, bondage, pain play, blood play. However, Xander is an active and willing participant (at least after the first two chapters where he's a willing but reluctant participant)