Perhaps Nightshade was always going to leave at this point. Maybe she had other things to do, and the generals of the Summer Court wanted her on another task as soon as she escorted them, and she simply doesn't care to give a proper goodbye given their tenuous relationship. She did give her word...

But still, Yuya grips his staff, and after a moment projects his shield to the maximum range. Just in case. "Is that glow... the Ringmaster?"