"My name is Morrigan." A name might be good, if they get separated, and some people here might even know her by reputation. "We shall have to run, if I stop then tis to cast a spell - such things must be done standing still." Either that or the terror demon will have exploded under their feet or she might have changed her shape into something more suited to tackle it but bridges to cross when they come to it. "You are able to run, yes?"