They say they have a patron, you know? Some grim mistress who lives in great and terrible webs in some dark place, nurturing these things and then letting them slip into the world through the cracks in the walls, to hunt and prey upon any who dare fall into their midst. But they say they are just stories... but the things you hear from the dwarves sometimes... Instinct: To serve its master

• Spin webs of razorwire
• Appear from above or below
• Inject paralysing venom