Please join Michael S. for a 12 hour marathon of the classic Dungeons and Dragons module B2, Keep on the
Borderlands for International Traditional Gaming Week. Tentatively, it will be
from 10am to 10pm on Saturday, March 27th at Chicagoland Games in Chicago.

The idea is similar to how the Tower of Gygax adventures are run at GenCon. You
come in, you wait for a slot at the table. When someone dies or wants to give up
their seat or they have been there an hour someone else sits down. You have
pre-gen character sheets in front of you. You start at the Keep, you go to the
Caves of Chaos and make some noise. If you level up, tada! You are 2nd level.
Here is your sign. If you die as a first level, let someone else take your
place. If you die as a 2nd+ level, take your sheet with you, I put out a new
shiny first level in your place.

http://www.rpgchicago.com/calendar/12509864/?eventId=12509864&action=detail