Minecraft wiki entry for Igloo, associated text: In half of all igloos, an oak trapdoor can be found under the carpet (the third white carpet straight ahead from the doorway), leading down a long ladder shaft to a basement. This passageway and the basement are built from stone bricks, some of which are infested blocks. In this basement there is a brewing stand, a cauldron, and a chest. Beyond the far wall, behind iron bars in two different cages, are a plains‌[JE only]/snowy‌[BE only] villager and a plains zombie villager.[1] The zombie villager can be cured with a golden apple and a splash potion of Weakness, both found inside the igloo. However, this may make the zombie villager lose its profession.