Board Thread:Speculation House/@comment-26417457-20190715232011/@comment-26417457-20190903174922

Wilfred J. Pemberley wrote: But she already saw Cinder, face to face, in Volume 5, and she didn't "lose her shit" then. Why would it change the second time? Maybe because Cinder was able to fight back and there were other people fighting which distracted Ruby, I guess. Either way I can imagine Ruby becoming more vengeful and throughout these 6 volumes she has shown become progessively less light-hearted.

Ruby might no qualms about killing ANY of Salem's minions such as Cinder, Emerald, Mercury especially if they have wronged her. If Em and Merc get captured and forced to cough up information, I wouldn't be very surprised if Ruby just kills them on the spot after they served their purpose. It doesn't help that the two are essentially fodder to the main cast.