in place, as if held there by magnetism. He didn't touch it. "Master Sean, I don't know much about magic," he said, "but can't you find out who was wearing this robe just as easily as you found out that the button matched?" Master Sean wagged his head in a firm negative. "No, sir. 'Tisn't relevant sir. The relevancy of the integrated dress-as-a-whole is quite strong. So is that of the seamstress or tailor who made the garment, and that of the weaver who made the cloth. But, except in certain circumstances, the person who wears or wore the garment has little actual relevancy to the garment itself." "I'm afraid I don't understand," said Sir Pierre, looking puzzled. "Look at it like this, sir: That gown wouldn't be what it is if the weaver hadn't made the cloth in that particular way. It wouldn't be what it is if the seamstress hadn't cut it in a particular way and sewed it in a specific manner. You follow, sir? Yes. Well, then, the connections between garment-and-weaver and garment-and-seamstress are strongly relevant. But this dress would still be pretty much what it is if it had stayed in the closet instead of being worn. No relevance—or very little. Now, if it were a well-worn garment, that would be different—that is, if it had always been worn by the same person. Then, you see, sir, the garment-as-a-whole is what it is because of the wearing, and the wearer becomes relevant." He pointed at the little handgun he was still holding in his hand. "Now you take your gun, here, sir. The—" "It isn't my gun," Sir Pierre interrupted firmly. "I was speaking rhetorically, sir," said Master Sean with infinite patience. "This gun or any other gun in general, if you see what I mean, sir. It's even harder to place the ownership of a gun. Most of the wear on a gun is purely mechanical. It don't matter who pulls the trigger, you see, the erosion by the gases produced in the chamber, and the wear caused by the bullet passing through the barrel will be the same. You see, sir, 'tisn't relevant to the gun who pulled its trigger or what it's fired at. The bullet's a slightly different matter. To the bullet, it is relevant which gun it was fired from and what it hit. All these things simply have to be taken into account, Sir Pierre." "I see," said the knight. "Very interesting, Master Sean." Then he turned to Lord Darcy. "Is there anything else, your lordship? There's a great deal of county business to be attended to."