"The phosphorus paint compounded by Freiherr von Leibniz, and daubed upon its card by Mr. Hoxton, performed as expected. It was right in my face, as bright as a full moon. I say we were going southeast on a good road—almost certainly this one," insisted Kikin, streaking his finger across the map. "I counted, er..." and here he consulted his notes. "Seventy-eight revolutions of the wheel." For Newton had proposed, and Saturn had constructed, a little device that produced a click every time the wheel went round.