Officially, Elmer Brown Mason was a government entomologist in charge of the Gulf States. Privately, he journeyed to the dangerous corners of the world in search of adventure. In 1915-16, he turned his experiences into vivid, and fantastic, fiction set in the places he knew. In each of these ten stories, taken from The Popular Magazine and All-Story Weekly, Mason's scientist-adventurers visit strange places and encounter strange people and undergo often horrifying ordeals.