I'm looking for a series fo childrens mystery books titled THE THREE INVESTIGATORS.  They were printed from 1964-1987 in hardcover and paperback.  I will pay cash for any of these in fair to excellent condition and will pick them up, if within 40 miles of Newnan, Georgia.  Please contact Robert if you have any of these.   rdavisnewnan@aol.comor 678-480-0673