As part of the Zurich Writers Workshop this weekend, New York Times Bestselling Author Susan Jane Gilman and University of Oxford Fiction Tutor Amal Chatterjee will be reading from their works on Sunday, October 3, 2010 from 12:30-1:00 p.m. at Schoentalstrasse 8, 8004 Zurich. The event is free and open to the public. Books will be available for sale.
If that's not quite your thing, here are some other indoor options:
Andy Warhol Exhibit at the art museum in Basel.
Choir Festival in Appenzell (not sure exactly how indoors this is).
Funny Laundry performs stand-up comedy in Zurich.