"I'd agree somewhat, the thief may be third party related to someone like merchant based or another well off noble coveting Vizerion's land and/or deal with the church to me would be more likely a path to research versus a random thief trying to just loot.
Vandals access the dangers and risks just like everyone else, a few quick coins for most isn't worth getting killed by the undead over if you're not brazen it's not good business. Either he had something to do with the undead or he had a way to keep them in check... unless they're gone now then well... we'd need to look for illegal document and papers into illegal dark arts. Mind the tone Lady Nera, remember our actions and deeds not only reflect on our job at hand but also the reputation of Lady Argus. What we do in the grey must adhere to the job and the repercussions of said actions is something we need to gauge and shoulder the burden of and plus the strain it may cause in our relationship to Argus." he works out verbally before putting a pause in the discussion for a serious reminder of the rippling effect.