he said calmly.Harry couldn't take it in.said Quirrell coollyScurrying around the school on Halloween like that,Snape, who already suspected me, went straight to the third floor to head me off"Trust Dumbledore to come up with something like this...said Quirrell idly,"He was on to me by that time,a spasm of fear flitted across Quirrell's faceQuirrell cursed under his breath.Harry's mind was racin..