The Mining Guild is located in the city of Kerkopoes. However, it is said that apart of it is also underground. Only miners who have over 60 years' experience in mining(for some species, this age is considered relatively young) are allowed to go inside. However, exceptions are sometimes made during holidays when KerKnights are posted in the entranceway of the Mining Guild and they ask riddles. If answered correctly, the person is allowed to go inside. If not, they aren't allowed to try again until the next holiday.