[ Sansa gives him a quiet look because it isn't that hard to guess why he is being cautious in revealing his plans to her. She knows that it's not just because he is a cautious man but also because he worries about her ties to Jon which is almost amusing since Jon worries about the same in reverse.

She is patient in waiting, though, because she has learned the need to be. Folding her hands in her laps, she waits until he speaks again and starts to nod when he reveals what she figures is the safest part for him to reveal. Considering all that she has seen him accomplish since her arrival, she figures this is all public knowledge or could be. ]

That explains the library. [ She smiles softly. ] Which I did explore a little when it first opened. It's a wonderful place, Petyr.

[ Yes, she used his first name without prodding. ]

What about the schools?