His tension eased just a microvolt. "Yes, sir, I am afraid I must." He reached back and touched a brick with a white-gloved hand. A panel slid up and the hole in the wall extruded a blocky lucite sheet. I smiled and pressed my right hand to it. A light passed under it and back, then the beeped verification of membership. The elf smiled. "Very good, sir. And this is your guest?"