Bhalrik's Bunker

You conjure an extradimensional dwelling in range that lasts for the duration. You choose whether it is a 5ft hatch on a horizontal surface or 5ft door on a vertical surface. The entrance is made from hard wood, worked stone, or ferrous metal and has a locking mechanism. A creature inside can touch the door and see through it as if they were standing outside.

The DC required for a creature to pick the lock or force their way through the door is equal to your spell save DC. If you have proficiency in Carpenter's Tools, Mason's Tools, or Smith's Tools the DC to force the door open increases by 5, if you have proficiency in Thieves' Tools the DC to pick the lock increases by 5.

The interior has a floorspace of a 15ft square and is 10ft tall. It is made of wood, stone, or metal and can be furnish in whatever way you wish with simple sturdy furnishing such as tables, chairs, beds, shelves, ect. as well as basins and washtubs with running fresh water. You can also add thin walls that cut the space in whatever way you wish (to make a washroom for instance). Regardless of the floorplan, there is an amount of canned food equivalent to 3 rations.

The interior of the bunker is warm and dry, regardless of conditions outside. Any equipment, furnishings, or sustenance conjured with the tower dissipate into smoke if removed from it. At the end of the spell's duration, all creatures and objects within the bunker that were not created by the spell appear safely outside on the ground, and all traces of the bunker and its furnishings disappear.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the bunker can have one additional section and one additional ration for each slot level beyond 3rd. These sections can be connected horizontally through doors or vertically through a hatch and ladder.