THEY HAD BUILDINGS IN THE MIDDLE AGES Mac was looking at the calendar. “Murray,” he called out across the workspace, “Come over here.” Geoff obliged. “What is it?” “Time to do the water-flow thing. Need to check our footprint again.” “A bit past time, isn’t it? I’ll clear it with Luke and Sylvia.” “Can we use red dye this time?” “No. I’ll check with Artemisia, too, to be safe.” “Check with Sylvia first. She might not want Artemisia involved.” Geoff sighed. “I wish you hadn’t said that.” “Reduces the number of permissions,” Cormac was, as ever, unrepentant. “Can’t complain about that.” The water ran red and Mac was jubilant. Geoff realised too late that Mac had switched the dye. He blamed himself for not supervising Mac more closely. At least only we know about it, he reassured hi

