Abandoned Burthorpe mine

The troll invasion cave is a cave that the Mountain trolls use to try and invade Burthorpe during the Troll Warzone tutorial. During the tutorial, players encounter a Troll general at the north end of the cave, which they defeat with the help of Ozan. A baby troll can also be found here during the tutorial. After the tutorial players can return to the cave to find it filled with Troll brutes to the west, Troll chucker to the norths and Troll shamans to the east. Inside is also a Combat Supplier, selling some basic equipment with which to fight the trolls.

The cave used to be a mine, as shown by the rack of pickaxes and the minecart outside of the entrance. There is an inaccessible entrance at the end of the cave. Examining it gives the message "It's too dangerous to go deeper."