The stone troll, the Galeb Duhr, live in isolated tunnel complexes deep under the ground. They must have got there somehow (or are they birthed straight from the very rock?) but their homes have no entrances from the surfaces. Sometimes they break a wall into something else while building new tunnels – a mine, another monster's cave or even a cliff wall. These entrances are always shut again eventually, but they are known to take the chance to sneak out and steal – anything made of metal. Instinct: To eat metal

• Build or tear down a stone structure
• Blend into stonework
• Punch with a rocky fist