“But it still cuts things,” I said. I gestured back toward the sliced anvil. “He did that not five minutes ago.”
Helen pursed his lips for a moment. Then he looked at me and said, “Conservation of energy.”
I frowned and then got what he was saying. “Oh. Yeah, I bet you’re right. That makes sense.”
Henry shook his head. “What makes sense?”
“Laws of the universe,” I said. “Matter and energy cannot be created or destroyed. All you can do is change them around.”
“Sure,” Henry said. “What’s that got to do with the Sword?”
I frowned, trying to figure out how to explain. “All the Swords have … a kind of supernatural mass, eh? Representative of their power in the world and their role in it. Okay?”
“Sure,” Henry said slowly.
“When the Sword was vulnerable and Nicodemus broke Fidelacchius, h
