During my 2008 Arctic voyage with Adventure Canada, we visited Beechey Island, site of the first three graves of the lost Franklin expedition of 1845. Elisha Kent Kane, the subject of my book Race to the Polar Sea, was one of the first to discover those three graves. I was trying to locate the precise spot where Kane was standing when a sailor came tumbling over a snow-covered ridge hollering, “Graves! We’ve found graves!” But as we were making our way towards it, suddenly a polar bear started moving rapidly around a bay in our direction. A polar bear can outrun a race horse, so we beat it back to the zodiacs.