Repeat one of the lesser known feats of Rodwin the Pathfinder using the provided hints.
“...Something definitely moved in the darkness... But I thought I killed it last time! It’s okay, we’ll check it out. I decided to dump all the mercury I had over there... A nasty rustling sound came from the hive, and sure enough – a Harcide lunged out of the darkness for me..!”
. This achievement can only be received during the Dragon Challenge event.