She sits there in a daze, feeling his seed trickle out of her, remembering that he always murders his girls with spectacular violence on the rare occasion that he gets one pregnant. She'd better start drinking contraceptive tea every morning.
That... was much better than she could possibly have hoped for. He healed her. He values her. He likes that she wants him.
Well. Time to arrange her entire life around that, then.
Her shift and wraps are irrecoverable; she uses them to wipe most of the rest of the blood off herself. Her dress, although spotted with blood and soaked in ink, is at least structurally intact; she puts it back on. Her day's work is also a total loss. She dutifully reports her inexcusable clumsiness to the junior clerk, who looks at her bedraggled state and sighs and tells her that given her flawless record she's allowed to fall down the stairs once in a while without getting whipped for it. She skips dinner and stays up half the night rewriting everything she was supposed to have done that day, and by the next morning she's caught up.
She seeks out interesting places to hide. Different parts of the eastern towers; secluded gardens; a portrait gallery only accessible by an awkwardly cramped spiral stair from a small and mostly useless corridor behind the main dining hall... she wonders what that one's about, when she finds it. There's a room past the far end of the gallery with a lovely comfortable window seat that gets excellent light all day and offers a beautiful view of the woods to the south. After spending one afternoon there, she hauls a folding desk up the awkward stair and starts doing all her work in that window seat, with her ink bottle securely seated in the round well at the corner of the desk. Her lap-desk is still more comfortable for most purposes, but she's not going to lose another entire day's work and set of clothes unless the Emperor deliberately decides to ruin them.