A far off land in Kalimdor awaits$bWhere peril has dashed hopes and fates$bEast of Barrens the weather is harsh$bGloom and danger pock Dustwallow Marsh$bBut there lies a clue for those up to the test$bWaiting to be found in a cave in the southwest

Solve the riddle!

Find the clue in Dustwallow Marsh.