Vanishing Doorway

As you cast the spell, you outline 5 adjacent, functioning doors with sigils. The outlined doors become linked together and 22, 30x30 rooms come into existence and are connected to the doors. These rooms are accessible only by these doors and only a wish spell can dispel the doors.

Each room is given a combination of doors that need to be opened simultaneously to access it, which you choose when they form and only one door will open to the room. Should a wrong combination be used, the opened door only shows a plain concrete wall. This also applies to combination doors that don't lead to rooms.

Casting this spell within itself is possible, however the casting time and components exponentially double each time this is done.