Whatever happened to the city of Atlantis? Is there a conspiracy afoot to cover up alien activity at Area 51? Some of history's Enduring Mysteries involve tales

In simple language written for beginning readers, this Level 4 DK Reader tells the story of 13- year-old Anne Frank, who went into hiding from the Nazis with he

Five planes vanish into the blue ocean. Two crews disappear from a ship. Strange things can happen when you enter the Bermuda Triangle. Stunning photographs com

Three of baseball's biggest heroes are profiled in this reader: Mark McGwire and his 500-plus career homeruns; Sammy Sosa's rise from poverty to international s

An ordinary day turns disastrous as a regular training flight disappears. But what could have caused the crew to be so confused? This graphic narrative explores