L to R R to L Alpha
I'm a little uncertain about this route. It seems like the obvious starts are either in the chimney on the left (probably not Bob's intent, and definitely not 12a), or to start on Sister of Mercy and then go left, but that's probably also a little soft and doesn't jive with the first bolt. It may be that you're supposed to campus up the overhanging arete.
It is in the alcove across from the Virgin.