If she was early, she was on stealth mode.
Skinner's church was burnt; his house was plundered; for some years he had to minister to his congregation by stealth; and in 1753 he suffered six months' imprisonment for having officiated to more than four persons besides his own family.
If I'm not mistaken, I've got the magical power of stealth mode.
He still didn't understand the question Sofi wanted him to know, but the fact the woman capable of operating on stealth-mode was the answer did not set well with him.
Unable to find her when she was on stealth mode, he was acutely aware that he had no control over what was going on below.