Ravina

The problem is, if they don't hand over the evidence of what's going on just by us asking for it, which is probable, the second factorum group will be the ones who'll have to find it. At that, a Tech Priest would be invaluable. And it might be as well for the two groups not to be seen together, at least at first, if one's going to try a covert entrance.

She nods at Esther's point

I wouldn't know how to do it, but if you can find out where he spends his time, that would speed things up brilliantly.