"It's not flawless." The words didn't carry any more weight than anything else she's said this evening, but as the bubble vanished into nothing and the glow of her arm died away, she turned to face Sherlock. She couldn't do it in profile alone -- not with her limited peripheral vision.

Of course, Sherlock had never known Ruka before she lost her eye, and unless he'd dug far, far back into the Network archives, he did not truly know the difference it made.

But even without any obvious or subtle indicators to her eye, her meaning was clear: she wouldn't look like this if her powers were without flaw.