Hieronymus Lex is an imperial gaurd and watch captain of the Imperial City, later re-assigned to gaurd captain of Anvil. His nemesis is the Gray Fox
and his life long goal is to put him behind bars. Ironicly Lex is never able to catch the Gray Fox
because of his re-assignment to Anvil, where the Gray Fox
is the count.
After tax records and the taxes for the people of the Waterfront were stolen, Lex knowing the Gray Fox looks out for and protects the poor of the Waterfront must have've been behind it and goes so far as to drag most of the Imperial City's gaurd down to the Waterfront to harrass the locals. After five artifacts in five different places within the Imperial City are all stolen on the same night with a note from the Gray Fox himself:
"It seems that security in the Arcane University is not what it used to be. In fact, that seems to be a problem all over the Imperial City. I would recommend that you get your guards back on duty unless you want more of your precious artifacts to go missing.
The Gray Fox"
Lex is then orderd to return the gaurd to the City. After being re-assigned to gaurd captain of Anvil he knows the Gray Fox was behind it and is saddend knowing he has failed in his mission.
Lex has wanted posters for the Gray Fox up all over the Imperial City. He had asked Adamus Phillida to put a bounty on the Gray Fox's head but Adamus like most people believe the Gray Fox and the Thieves Guild to be purley myth and thus refused.