Indiana Jones and the Seven Veils (A Bantam Falcon book)
Having barely survived a hair-raising archaeological dig in  Tikal, Guatemala, Indiana Jones has returned to New York just in time to  get caught up in a controversy.  The mysterious writings of Colonel  Percy Fawcett, a missing British explorer, have turned up, and what they  describe could revolutionize history--and make or break several  scientific reputations.  For Percy paints a tantalizing picture of a  lost city in the Brazilian jungle and a mythical red-headed race who  may be the descendants of ancient Celtic Druids. . .No one loves  mystery or adventure more than Indiana Jones.  So with his trusty  bullwhip in hand and the lovely Deidre Campbell firmly in tow, he sets  out for the wilds of the Amazon, but Indy has more enemies than he  knows, including a bunch of hard-nosed thugs and a cannibalistic Indian  tribe who are out to make him instant history.  And if he survives what  they throw his way, there's still the fabled city itself. . .where the  inhabitants practice the magic of the "seven veils" and no one leaves  alive!