Beware the Clap is a challenge in Scylla's Grove.
Strategy[]
In the passage leading down to the Ardorton Station connection, there is a small cave to the south at the first bend. In this cave, a human sacrifice has been strung up to meet his fate. Before the hapless savage is a carefully arranged set of bones. The bones are a switch that activates the sacrifice mechanism, and when this is pulled a giant claptrap wheels up behind the victim and roasts him alive.
This area is blocked by rocks if the main quest Professor Nakayama, I Presume? is not completed.