Unlike many of his contemporaries, who tore into the monuments with no sense of method or scientific inquiry, Jefferson was not interested in collecting curios, but as a thinker influenced by Enlightenment ideals, he was determined to gather facts that might shed light on the mystery of mound-builder
The red man came--The roaming hunter tribes, warlike and fierce, And the mound-builders
vanished from the earth.
The Mississippians by erecting monumental pyramids gave the land a sacred meaning, while centuries after the collapse of the mound-builders
monks gave the land a Christian value.
Since then he has produced perhaps seventy sf novels, more than thirty-five sf story collections, about eighty non-fiction books on everything from ancient mound-builders
to the Rockefellers, probably more than a hundred erotic or juvenile novels under pseudonyms, and more than sixty books upon which his name appears as editor.
along these Amerindian trade routes died suddenly and otherwise unaccountably, and yet recent forensic analysis of burial remains has shown the presence of viable plague bacillus.