The Hut of Baba Yaga appears from the outside to be a small hovel about 10–15 feet in diameter, standing on two strange stilts. The interior of the hut, which resembles a small palace, is ten times the outer diameter and filled with rich furnishings, magic fountains of water and wine, and other magic items; its walls are the equivalent of 5-foot thick stone. The stilts it stands upon are actually gigantic bird-like legs which can carry the hut over any terrain. They are able to deliver mighty blows to any uninvited intruder.
The Hut's interior is dimensionally folded, making mapping difficult. Higher levels of the Hut occupy the same dimensional space as lower levels. The Hut can "steal" many spells that attempt to modify its environment, ignoring them, memorizing them, and then using them against their original casters at will. If subjected to spells like identify or stone tell, it will lie to the casters, admitting only one truth: its name, the Dancing Hut of Baba Yaga. It is entirely immune to other spells; the only effects that can conceivably harm it are an orb of annihilation, dimensional mine, or disintegration chamber large enough to contain it. The Hut will "dance" (planeshift) away from these items as fast as it can.
The hut dances between planes of existence. On each world it visits, its exact appearance changes. Sometimes it is circular, sometimes hexagonal. Its interior layout also changes each time, basing itself on a different geometric shape. Objects may disappear or reappear, and those who have taken up permanent residence within the Hut may change as well (including Baba Yaga herself, though temporary visitors remain the same). Baba Yaga herself always knows the layout of her home, regardless of the shape it takes.
The appearance of Baba Yaga's Hut is momentous. Baba Yaga typically sets her artifact down in a woodland clearing, surrounding it with a fence made of magically animated bones and skulls. All animals within a five-mile radius flee from it immediately, as if a forest fire were behind them. From a great distance away, observers hear the crashing of thunder and great trees as storms brew around the witch's flying cauldron and trees uproot and reroot themselves to make way for her passage and then hide her path. Because Baba Yaga has enslaved the forces of Light, Darkness, and Twilight, time itself seems unnaturally distorted on worlds where Baba Yaga is visiting; the night may last 36 hours, or 24 hours may go by without the sun setting.