Celes, who saw Spruce fall on the ground cause of all the poison he took, rushed to him, before standing in front of the Carl, and then striking once with her chain, before turning to Spruce.
"Spruce.... please be ok." shes says, before turning and looking at M, who was about to kill Bart with all this.
"M, enough! We do not want to end up with murder in our hands! Just stop now! We will tie them up and bring them to justice, just stop!" she then yells at him, moving quickly. Seriously, if M were to act like this, then he might get serious trouble, like possibly a good while in the prison of Allure town. They really didn't need that at the moment. Sure they needed to faint those guys, but not kill them. God... that would be just barbaric and cruel.
"Think about it! You are better then those fools! Just don't go and do something that you will regret all your life!" she then yells.