"I know," she said and could not bring herself to assure Irisviel she was all right. Arturia knew she wasn't, but she also knew it'd be a very long time before she could be, if at all.

How could she even look Irisviel in the face? After what she'd done--murdered Kiritsugu's son for the sake of the Grail?--how could she even bring herself to look her in the eye?

"This place is rather unsettling. That's all." Not the whole truth, nowhere near the truth at all but Arturia knew if she was asked directly she'd likely tell Irisviel everything. Her only consolation was the fact Ilya had been the Grail Vessel in the Fifth War and not Irisviel's daughter. At least, if the subject came up, she could tell her Lady that her daughter had not shared her fate.

Or so she believed.