xander/batman crossover

[immutablefact.livejournal.com]

 Hi guys! I'm looking for a post season 7 batman comics crossover I read it about a year ago, maybe less. Xander is with a minislayer! (about eight years old) who goes charging into some situation (a cave maybe) and he follows and they somehow end up in DC Comics world. I forget a lot of the contents but back in buffy 'verse Andrew comes across a new comic series with Xander in the starring role. I remember this as being a great story so any info you can provide is welcomed.

FOUND @ asylums.insanejournal.com/lisaroquin_fic/66352.html thanks to jenna_marianne