Rin freaked out?

(Surely he would be more knowledgeable about liches than most? Lucretia frowns.) How come?

(She can tell it's bothering her, so she's gonna attempt to make Lup open up about it. She grins fleetingly when Lup comes floating over, craning her neck to spot which book Lup had put back on the shelf.)

I think you are the personal ghost of all of us, (she teases,) and judge all you want because that is not my book. I'm just borrowing it.