"I...well, not really. I mean, I can't really describe it. I did visit the heart, yes. That part seems fine, but you can check my scan data if you have doubts. The thing I saw, though...it was dark and thin..."<br/>Xix clings to the artery wall, unwilling to lean out far enough to risk being swept up in the current of blood. Or, for that matter, spotted by the intrusive thing. He lowered his voice. "I've lost sight of it, but it might still be around here...how well does sound travel through this blood, anyway?"