The Jermyn Credit Bank
Adventure #11 in the collection . First published in Thomson's Weekly News 03/30/1918
When an American con man shows up on the recommendation of a colleague of Heine in the US, Heine is not interested. When Heine sees a chance to lend a powerful British general £20k, he jumps at it. When the general turns out to really be the American, Heine is sickened. When Major Haynes shows up, things get worse.