Vammy was taken aback when the metal bit retracted and some bit of glass next to a small metal grate-like thing.  Then, a cracked voice spoke to her!  Pres-ID.  Of course, the demon jumped back slightly, bumping into Yuisa.  "Pres...ID?  ID?  Wait, what just spoke to us? Is this some sort of magic!?"  The demon questioned Yuisa while studying the glass semicircle and metal bits.  Nothing seemed to attack them from it and Vammy just looked on, pondering what she should do at this point.  "Do you know what an 'ID' is?"  The demon asked Yuisa, pondering the situation.  Then, as if having some great idea, Vammy picked up the key from her pocket and waved it in front of the glass bit.  "This is the only thing we've found here."  She waved it in front of the glass, hoping that it would accept that as whatever this 'ID' was suppose to be.  After all, keys opened doors and locks and things.  She was mostly sure this would come about with no real benefit but it was worth a try.  If not, they just needed to turn around and head towards the other door.