Suzanne Collins said this quote

If Under fell, if Over leaped,If death was life and Death life reaped,Something rises from the gloom,To make the Underland a tombHear it scratching down below,Rat of long forgotten snow,Evil cloaked in coat of White,Will the Warrior drain your light?What could turn the Warrior week?What do burning Gnawers seek?Just a barely speaking pup That holds the Land of Under upDie the baby, die his heartDie his most essential partDie the peace that rules the hour,Gnawers have their key to power