The thought of two different libraries had occurred to me. But mobileread own the Patricia Clark Memorial Library, so it didn't sound quite correct that either. Will a public library not close on Christmas Eve? Here in Norway everything closes before 5 PM, but I have no idea how the customs are "abroad". I though it could be a good idea to clear this up in public so that the different languages or customs in this community is not a barrier to participate.
Where would the hall be then? In some books I've read, they have used the phrase "upstairs hall", indicating that the hall is usually downstairs - i.e. in the ground floor/1st floor (again, depending on location

Why can't all the world be location-independent. Crime-solving could be more fun that way).