just feeling real funny and strange..
i am not really into farming keys, but rather 'passing by' the place since i am grinding up my paragon lvl. i do meet these key holders but none of them drop any keys when i kill them, i play mp1 (since it is easier and faster) ... i killed them more than 20 times but nothin drop?

or do i need to but the plan for the jeweler first ?
p/s i am still a noobie here .... ....