"I could check with Hermès," said Lev. "The components are very small, though, and distributed. Some are biological. I couldn’t tell you where my own are, without accessing medical history. Part of my cousin’s became inflamed, had to be replaced. Base of the skull. But they can put them anywhere." He propped himself against the edge of the desk. "May we show you London now? We’ve a helicopter above the house, like the one you flew for us. You’ll want to take a seat."