{
  "type": "integrated_api:nether_structure",
  "start_pool": "idas:ancient_portal/nether_ancient_portal1",
  "size": 2,
  "biomes": "incendium:ash_barrens",
  "step": "surface_structures",
  "terrain_adaptation": "beard_box",
  "land_search_direction": "HIGHEST_LAND",
  "start_height": {
    "absolute": 0
  },
  "spawn_overrides": {
    "monster": {
      "bounding_box": "piece",
      "spawns": [
        {
          "type": "quark:wraith",
          "weight": 10,
          "minCount": 1,
          "maxCount": 1
        }
      ]
    }
  }
}