The Riddle Of The Night: A Mystery/Detective Classic By Thomas W. Hanshew! AAA+++

Being the record of a singular adventure of that remarkable detective genius, Hamilton Cleek, The Man of the Forty Faces, once known to the police as "The Vanishing Cracksman."

A man mysteriously murdered at night, the figures 2x4 x 1x2 scrawled on his shirt front, a broken shoe-polish label beside him. Cleek solved it. Can you?