Pocket Dimension

This spell makes a 10 ft. portal suspended in the air, as you look though it you can see one door inside of a small corridor. The door will remain locked if you do not have a spell slot available to use. While the portal remains open anything can enter, but they can only wait in the small corridor, the door will remain lock to any unwelcome visitors. This is because they are not the original caster of the spell, though others can be invited in with your approval. Once the person approved of a black mark will appear on the persons arm, it forms an image of what that caster is thinking of at the time but can be changed at any time. 

When you open a portal into the pocket detention you are tearing a rift in space, you must roll a 1d20 against your intelligent save. If you fail pass the check you will take 1d8 force damage.

When the spell is dispelled anything living will be ejected out to the closest empty space. Any living thing ejected out takes a 1d10 of force damage, Beware of cliffs.

Upon using a level 1 spell slot on the door it will open to a 2x3 square ft. room. Lasts for 1 hour.

Upon using a level 2 spell slot on the door it will open to a 5x5 square ft. room. Lasts for 3 hour. you are able to re-enter at any time until the duration is up.

Upon using a level 3 spell slot on the door it will open to a 6x6 square ft. room. Lasts for 4 hour. you are able to re-enter at any time until the duration is up.

Upon using a level 4 spell slot on the door it will open to a 8x10 square ft. room. Lasts for 6 hour. you are able to re-enter at any time until the duration is up.

Upon using a level 5 spell slot on the door it will open to a 10x10 square ft. room. Lasts for 8 hour. you are able to re-enter at any time until the duration is up.

Upon using a level 6 spell slot on the door it will open to a 10x14 square ft. room. Lasts for 10 hour. you are able to re-enter at any time until the duration is up.

Upon using a level 7 spell slot on the door it will open to a 12x16 square ft. room. Lasts for 12 hour. you are able to re-enter at any time until the duration is up.

Upon using a level 8 spell slot on the door it will open to a 100x400 square ft. room. Lasts for 2 days can be re-enter at any time until the duration is up.

Upon using a level 9 spell slot on the door it will open to an island that is 193,437x193,437 square miles. There is no longer a duration, but you must use another spell slot if you exit the door.