Arcanum: Of Steamworks and Magick Obscura Wiki

Arvid Millstone, the foreman of the miners in the wheel clan tells you of beasts which have been killing his miners. He asks you to kill the creatures.

These turn out to be a plethora of spiders including a very large Dread Crystal Spider with almost 300 hit points (this can take a while to beat down).

When you have killed all the spiders, return to Arvid. Note it is quite easy to miss one or two of them.

This gives you an new reputation and increases your regard with the Wheel Clan.