It's the answer you asked for, Rita. Which leaves him a little nonplussed, especially when she dismisses it for not agreeing with her prior belief. He's starting to wonder what Lambert expects him to do if she doesn't even want his input.

The pages she's on are effectively reflecting on the existence and nature of timelines, and the dramatic instability of worlds with many of them--splintering off and collapsing and merging and so on, as timelines do. Unfortunately, as with everything else in the book, it's meant less to be a technical manual or research publication and more like a cross between a religious tome and a long dissertation. So this takes a while to get through--moreso if she's reading every word.

There is a brief mention of Realms by way of contrast, but in a way that implies she might have missed something in a previous chapter.

She's barely touched most of the book, though; she could spend days getting through it.