The fun starts right away, as Egwene and Nynaeve are almost killed by a crossbow from a Grey Man, someone who has given up their soul to the Dark One to become Beneath Notice. Nynaeve traps him in an air pocket, but there’s another one who kills him and then circles around to remove the arrow. That’s when Sheriam finds them, which makes her suspect number one to Nynaeve, though of course that would be too easy. They’re told not to tell anyone else about this, which could lead to quite the inappropriate comedy of Egwene and Nynaeve knowing the whole story and struggling to remember who else knows each part.
The Grey Men are a pretty good addition to the Rogues Gallery, and it actually makes sense why we haven’t heard of them until now: less subtle ways of taking the heroes out haven’t worked, so now the Dark One sends in the elite assassins that he saves for the big problems. This is getting complicated fast, and is actually starting to pull ahead of the Perrin and Rand stories in my interest level.