He is featured in the campaign Northern Rebirth. He can be found in the 2nd scenario, Infested Caves, in the northernmost village.
~[I managed to survive all this time] by frying every orc, troll or skeleton I come across. Duh! Those monsters desecrated my life’s work, now I shall not rest till I send every last one of them to hell! Oh, and just between me and you, it is actually good fun — more fun anyway than sitting on your backside studying all day... [...] But silly me, where are my manners? Would you like to come inside for tea?~
~YEAH! DIE, SCUM, DIE!~