We discovered a monster castle south-west of the spawn in the darklands! Beware, do not even attempt to go by yourself! There are more mobs than you would dare to even look at!
The chests in the castles are said to have lapis, clay, lightstone and diamonds! Please try to find it, and report here how you conquered it!
[Update] The first raid with 2 brave warriors already failed on the third floor! Make sure you bring your equipment along! But the first two floors are raided already![/Update]