Meltzer, a master storyteller, counts down the world's top ten conspiracy theories. He sifts through the evidence, weighs competing theories, separates what we know to be true from what is unproved or unprovable. In the end, he decodes the mystery and arrives at the most like explanation... or does he? -- Adapted from back cover.

"Originally published in 2013 as History decoded: the 10 greatest conspiracies of all time"--Title page verso.

Introduction --John Wilkes Booth : was Lincoln's assassin apprehended? -- Confederate gold : stolen treasure or hidden wealth of a new Confederacy? -- The Georgia Guidestones : America's Stonehenge -- DB Cooper : American outlaw -- The White House : where is the cornerstone of democracy? -- The spear of destiny : history's most sacred relic -- The real da Vinci code : did Leonardo predict an apocalypse -- Is there any gold in Fort Knox? -- UFOs: inside Roswell and Area 51 -- The Kennedy assassination : the truth is out there.