Thea's Master Keys

As you cast the spell, On a door with a key hole. A portal will appear showing the room of the key. Stepping through door will take you to the Master key location. The portal well remain opan till the door is closed or a minute has passed. 

In order to create a master key you must Enchant a skeletal key it will take six days of casting on the key on the seventh day the key will consume 500gp and the object from the room taking on its qualities.

You can enchant more master keys to a max of your proficiency bonus.

If one of your master keys are lost or stolen you can spend one hour to ritualty summon it back to you. 

Note: If another person knows the spell and they have your key that can use it.