R. Austin Freeman, John Thorndyke's Cases — The Man with the Nailed Shoes (1909)
“ A single glance showed me the cause of his surprise, for on the stiff, putty-like surface, standing out with the sharp distinctness of a wax mould, were the fresh footprints of the man who had just passed, each footprint displaying on its sole the impression of stud-nails arranged in a diamond-shaped pattern, and on its heel a group of similar nails arranged in a cross. ”
