<Snipped quote by Kho>
My current idea is to establish a facade of standard university and learning stuff, with secret labs and collections people organized and hidden by Lazarus. So that one day your Great Library of Alexandria will suddenly burst into a tentacle and flesh abomination because ol' Laz screwed something up. This integrates him into storylines without readily giving up what his portfolio dictates he does.
Just keep in mind that it's still very early history. Not sure if academic institutions and labs and whatnot would be coming about yet. But I guess if Xerxes is advanced enough to have currency and advanced forms of trade, it's reasonable for it to have some kind of educational establishment.