The Shadraehin nodded. “He uses the catacombs to come and go—they run for miles, have exits everywhere from in the city to out past the mountains. But we don’t know our way around most of them, even if we wanted to go hunting someone as dangerous as Aelrith. We’ve sent people too deep in there before, and they haven’t come back.” His tone softened as he saw her expression. “I wouldn’t worry. From what you said, I don’t think he’s a threat to you. If anything, it sounds like we may never see him again.”