"Take it," she says, snarling, as she tosses the vial at him, taking the blow to the head. It doesn't knock her out instantly, but she goes limp, obviously dazed.<br/><br/>Fortunately for him, the vial misses him, and it's a good thing, because, when it shatters against the wall behind him, he can hear the hiss of the liquid eating through the stone behind him, and a couple of drops splash against his leg, immediately flaring into burning pain.