Unfortunately, Mr Gray doesn't have a clue what this Chakra ritual is. Maybe the council will know.. So you find a phone in the teachers lounge and call them, while all the other teachers and most of the students are outside of the building.
The council is able to tell you that the Chakra is a ritual meant to steal a slayers power as they die, preventing it from being passed on to the next potential. If it is successful, the next slayer will be one chosen by whoever performs the ritual, and may be anyone... or anything. The ritual requires the dead body of the Slayers watcher, as well as several other unusual ingredients, some of which you remember reading in the news as going missing over the last few days... A hornless 'fully-functional' (OODM: not sure the right word.. You know, one that hasn't been snipped) bull, a large diamond ring, and 2 surfboards both used by the same (female) teenager. The only item that you know of (Besides the watcher) that isn't allready missing are the eyes of a blind man who has survived a vampire bite. They say that any cost is worth it to stop this ritual, even if that means killing the Slayer before the ritual can be complete... You cannot allow the forces of evil to gain the powers of the slayer.
OODM: Any more questions for them? You've got several minutes still before people start coming back into the school.
And what are the rest of you doing/talking about while you wait in his room?