Edrigan's Ethereal Estate

You create a portal to a mansion-like demiplane, as well as a key to access it. The portal must exist on a flat surface, and once created will resemble an entrance typical of your estate (old oak door, carved stone entryway, etc.) of any size or shape which can fit any creature large or smaller. The entrance is accessible to anyone as long as it remains visible, but it can be hidden or revealed with an action for the duration. While hidden, the portal is undetectable save for a faint outline on the surface it was cast on.

Inside is a space of your own design and floor plan, but the space can’t exceed 100 cubes, each cube being 10 feet on each side. The estate and its furniture are composed of the materials provided in the components of the spell, and any open spaces along the edge of the estate will fade to impenetrable gray mist. The space is habitable, but has only one light source unless a spell scroll of Continual Flame (and material components for that spell) are included in the casting of this spell. The mansion will provide fresh water if it was included in the components of this spell, and food will grow as long as its seeds were included in the components of this spell. Plants have sufficient nutrients and water to grow, but require light and maintenance like any other plant. The estate can be altered in subsequent castings of the spell, ignoring the material components already used in the estate.

When the duration ends, any creatures or objects left inside the estate remain until it is accessed again. The estate can be accessed again by subsequent castings of the spell, without any component cost (as long as the key is present). In addition, the key can serve as a tuning fork for Plane Shift and can allow access to the estate via the Demiplane spell. The key can be recreated by another casting of the spell, as long as another item worth 10,000 gp is provided. Old keys are not destroyed when new ones are created, and can still serve as a tuning fork for that estate.

Multiple estates can be created via this spell, a new key created every time, as long as the material cost is paid.