The kingdom of the Gugs is surrounded by a colossal wall. Inside, cylindrical towers rise high into the mist, each one windowless and made of grey stone, with large looming doorways at the bottom. One black tower stands paramount among the others, rising into the very ceiling of the Underworld. You do not make it very far before you spot the sentry standing guard outside the city's walls: a tremendous creature with huge furry arms and an obscene toothy maw extending vertically through its head.