She'll help Angel on his quest if he'll help her find magic.
The number 9797 has a repeated combination and this tells us that the messages of nine and seven are doubly important.
And if that wasn't enough, Slayers start turning into zombies! The last issue of Season Eight was the first source officially confirmed to be canon that referred to Faith by her full name.
The story ends with Faith deciding to take some time alone to find herself.
Faith is such a complex, beautiful character.
She's along to make sure that everyone's feet stay on the ground, and out of anything they might regret.