Dame Simonetta sees a dozen rat eyes glaring back at her. The "eastern rats" have become aware of the party's presence! Their behavior seems squirmy and rat-like, but they neither flee nor attack. They're just sort of scurrying around back there in the cracks, trying to make sense of the situation with their little rodent brains.
Willie hears the sound of many rats to the southwest, but they don't seem to have noticed or reacted to him. Yet.
Kiplyn, Noh, and Tet are standing by, ready for battle if necessary.
Rat reaction check = 2d6 = 7.