" My cock has been hiding since the day she arrived," Bjarni had said, but only when he was sure she was out of earshot, which was a full day after she left. "You worry for nothing brother," Bjorn had said, "for even a seiðr-wife (witch) cannot put a spell on something she can't see. It would be like trying to hit a louse with a spear-throw. "

― Giles Kristian , Winter's Fire (The Rise of Sigurd, #2)