Fathom Fathom A fathom is a unit of length in the imperial and the U.S. customary systems equal to , used especially for measuring the depth of water. There are two yards (6 feet) in an imperial fathom. Originally the span of a man's outstretched arms, the size of a fathom has varied slightly depending on whether it was defined as a thousandth of an (Admiralty) nautical mile or as a multiple of the imperial yard. Formerly, the term was used for any of several units of length varying around . The name derives from the Old English word "fæðm", cognate
Deep Fathom world theorizing that there was one major civilization which actually travelled and populated the other parts of the world. Soon Kirkland gets a call from his ship the Deep Fathom telling him they have a bomb aboard and when the phone terminates he believes that the bomb had exploded. Spangler, who had tapped into the call, is happy as Kirkland's ship and friends were now gone. Karen, Kirkland and Miyuki then go to the pyramid city with Mwahu to following the first civilizations clues but when they arrive they are attacked by Spangler's men. Karen is caught, but the others