# Mighty Fortress > [!info] Spell Details > | | | > |---|---| > | **Level** | 8th | > | **School** | [[Conjuration]] | > | **Casting Time** | 1 Minute | > | **Range** | 1 mile | > | **Components** | V, S, M *(a diamond worth at least 500 gp, consumed)* | > | **Duration** | Instantaneous | > | **Classes** | Wizard | --- ## Description A fortress of stone erupts from a square area of ground of your choice that you can see within range. The area is 120 feet on each side, and it must not be occupied by other creatures or objects. The fortress is made of stone and consists of walls, towers, and other features the DM determines to be appropriate. It is furnished and decorated as you choose. The fortress has no doors or windows. Any opening in the walls or ceiling, including arrow slits or murder holes, can't be larger than 1 foot square. The fortress is permanent. You can cast this spell again to add onto an existing fortress you created with this spell, as long as you do so within 1 year of the previous casting. The fortress uses the same rules as a building, and can hold up to 100 residents. --- ## At Higher Levels This spell does not have an upcast effect.