The virus is spreading quickly. Your quests will find a test tube (non-breakable) and insert it into the antidote chamber. A green light illuminates and a voice is heard,"antidote detected". Now you must find the hidden numerical code and enter it in the keypad. This will cause the door to swing open allowing access to the giant throw switch. Pull the handle, the red beacon activates and the success announcement starts. "Success, success, levels returning to normal, virus terminated! Completely self contained. Plug this in for a great room finale!