The MOD will add the lost world. The portal is made of cobblestone, worm-eaten and activates the special subject. In the new world you will find only the new ore-uranium and the new creature-Wizard of the lost world.
The world itself is a flat terrain with deep pits, or even collapses, leading to the dripstone cave, with occasional "hills". In a world dominated by stone, a rare land where spaunâtsâ animals. Animals of the world: cow, chicken, etc is missing the Sun, or anything of that sort, the sky is green.