The 22-room Olema House evacuated all its guests last Friday after a chimney fire spread to the attic and walls at around 11 p.m. Firefighters from Marin County and Inverness and Bolinas Volunteer Fire Departments worked for hours to put out the blaze and mop up water. It was a hectic week in West Marin, with the county's largest fire of the year, in Muir Beach, and the power outage.   David Briggs