[X]Write-in: Ask Giles to call Amy's mom to the school on the pretense that she doesn't look well.
-[X] If this succeeds, then Giles should subtly try to get more information about Amy, her mother, and the spellbook if possible. Xander and Willow should go to Amy's house to burn the spellbook. Buffy should stay at the school because that's where the witch is.
-[X] If this does not succeed, then Xander and Willow should go to Amy's house to burn the spellbook and bring Buffy with them.