What does it mean? Ned thought, folding his arm back and narrowing his eyes. Disappointed by what Lord Sven had said. "It could be magic," Ned said, turning his head to the Cube. "Perhaps some hidden spells."
Ressurection was impossible. If it is, Lord Sven's ancestor would be walking the world of Earflgard by now. But no. So it's either a spell that made the body decline to rot, some scholars alchemical mixtures, or perhaps… the Mark.
"Impossible," Lord Sven's voice echoed inside the bubble magic that Twali had conjured. "Those kinds of magic exist—yes. But to last it more than a hundred years, I never heard one. Not even my House's scholars and mages heard of such spell."