Almost every mystery story starts with ” it was a dark and foggy night”. But this was a bright but foggy day, as we headed on south of Ft Pierce in the ICW. Suddenly both of us again heard the ” squealing ” that signified problems in the transmission. Veering off to the side of the waterway, we stopped and dropped anchor. Murray pulled everything out of the cockpit locker and checked the transmission. The drain plug was lying below the transmission! And, of course, there again was no fluid in the transmission.