Caiaphas looked at the doors, before reaching into one of his pouches, and pulled out a pair of gloves. He slipped off the ones he had been wearing, and put them on, before placing his hands on the metal plate. He SHOULD be able to see through the plating, unless someone had enchanted it to stop such an effect. If he could see through it, he knew which way the stairs went, and could use a passwall effect to get through with far less noise. Or he could use one of his items to do the same, but with way less notice from the spells.