Death Rides the Sound

Written by Arthur Leo Zagat

Copyright 1934

Published in Secret Service Operator #5 v2 #4, Nov 1934. Reprinted in the collections The Hand of Red Finger and Second Hand Death.
"A few indentations on a shiny bit of metal lead Red Finger — ace of the Counter-Espionage Bureau — on an eerie quest in the murky waters of a death-haunted inlet!"