As much as she was pledged to protect Ling, and protect her she would, Mai decided this would not be the best time to engage in argument. Better to discuss who covered the rear when something nasty was not preparing to kill them in all sorts of nasty ways, as nasty things are intent on doing. Still she kept an eye out behind her, both to ensure her friend kept up, and also to look for any traces of whatever it was that was waking from its slumber. Hei was also in a more active mode, sniffing and looking ahead to act as guard, just in case the something behind might be working with something ahead.