ISLE OF DOUBT was published in the August 15, 1933 issue of The Shadow Magazine.
The "isle" in question is an island in the Mississippi River. The "doubt" is the uncertainty as to whether it is the hiding place of millions in stolen loot or not....
![The Name of the Game is Death [aka Overkill]](https://www.rulit.me/data/programs/images/the-name-of-the-game-is-death-aka-overkill_248714.jpg)
