Extradimensional Bubble

By means of this spell, the wizard creates a spherical bubble of extradimensional space, entrance to which can be gained only at the place where the spell was cast. The maximum diameter of the bubble varies with the level of the caster, starting at 50 feet for a 16th-level caster and increasing by 5 feet per level. A smaller sphere can be created if desired.

Entry to the bubble is possible only after speaking the command word while standing within 10 feet of the entrance portal, after which the portal appears for exactly one minute before closing again. The portal can be opened as often as required. Leaving the bubble is possible at any time without speaking the command word, although this does not reveal the portal - the person leaving would seem to appear from nowhere. It is not possible to place any kind of warding magic on the portal to the extradimensional bubble. Only one entrance into the bubble can be created.

The spell lasts for 2d4 years +1 year for every level of the caster above 16th. Upon termination of the spell, the bubble collapses and everything in it is expelled into a random plane. The bubble can be renewed to prevent such catastrophe by recasting the spell, which simply extends the duration of the existing spell by 2d4 years. The spell can be ended prematurely by the spell's caster or with the careful wording of a Wish spell.

Type of Magic

Mage

Spell Level

8th

School

Alteration (House Publius), Conjuration

Sphere

Reversible?

Yes

Range

Touch

Components

Verbal, Somatic, Material

The material component for the spell is 10,000 gp worth of diamond dust. During casting, the outline of the desired opening must be traced with the diamond dust on a solid wall, floor, or ceiling.

Duration

Special

Casting Time

1 Hour

Area of Effect

Special

Saving Throw

None