Karrin and I walked over and went in. Without a word, I opened up the backpack, took out the little wooden sign, and put it down carefully on his desk. Mac saw the sign and his eyes widened. He looked at me, his face written heavily with consternation. “You know what it is,” I said. Mac rocked back half a pace. He looked from the sign to me. He didn’t quite lick his lips in nervous guilt, but it was pretty clear that he didn’t like that I’d realized what he knew.
