Mordenkainen's Private Sanctum

4th-Level Abjuration Spell (Artificer, Wizard)

Casting Time: 10 minutes
Range: 120 feet
Components: V, S, M (a thin sheet of lead)
Duration: 24 hours

You make an area within range magically secure. The area is a

A Cube is an area of effect that extends in straight lines from a point of origin located anywhere on a face of the Cube. The effect that creates a Cube specifies its size, which is the length of each side.

A Cube's point of origin isn't included in the area of effect unless its creator decides otherwise.

that can be as small as 5 feet to as large as 100 feet on each side. The spell lasts for the duration.

When you cast the spell, you decide what sort of security the spell provides, choosing any of the following properties:

• Sound can't pass through the barrier at the edge of the warded area.
• The barrier of the warded area appears dark and foggy, preventing vision (including

  If you have Darkvision, you can see in Dim Light within a specified range as if it were Bright Light and in Darkness within that range as if it were Dim Light. You discern colors in that Darkness only as shades of gray. See also Exploration.

  ) through it.
• Sensors created by Divination spells can't appear inside the protected area or pass through the barrier at its perimeter.
• Creatures in the area can't be targeted by Divination spells.
• Nothing can teleport into or out of the warded area.
• Planar travel is blocked within the warded area.

Casting this spell on the same spot every day for 365 days makes the spell last until dispelled.

At Higher Levels: You can increase the size of the

A Cube is an area of effect that extends in straight lines from a point of origin located anywhere on a face of the Cube. The effect that creates a Cube specifies its size, which is the length of each side.

A Cube's point of origin isn't included in the area of effect unless its creator decides otherwise.

by 100 feet for each spell slot level above 4.

Source: Player's Handbook, p. 301