The Drama on the Sixth Tee

Written by E. Phillips Oppenheim

Copyright 1939

First published in Pearson's Magazine (UK - February 1939). 10th story in the collection General Besserley's Second Puzzle Box.
Having finished a round of 9 holes with a friend, Besserley is entreated to do another with a visitor whose identity he was not told. That agreement would land him in the middle of an assassination plot and a likely victim.