Title: Enduring Mysteries
Subjects: Unidentified flying objects, Unidentified flying objects, juvenile literature, Air bases, Nevada, history, Nevada, juvenile literature, Juvenile literature, Research aircraft, Sightings and encounters, Atlantis (legendary place), Atlantis (legendary place), juvenile literature, Sasquatch, Primates, juvenile literature, Loch ness monster, Monsters, juvenile literature, Bermuda triangle, Atlantic coast, Atlantic coast, juvenile literature, Bermuda Triangle