From the bak of the book:
"The great dragon Vatrastrom sleeps on a bed of treasure at the heart of a volcano surrounded by wicked minions. Miles away, Lord Fez gathers a group of adventurers to request their aid in ending the red menace.
Before these brave heroes confront the dragon, they must first prepare by facing challenges that hone theor skills as individuals and as a team.
Many have attempted confronting Vatrastrom, but none have lived to claim the great prize of the wyrm's hoard.
Will your champions be the ones to complete the Marathon of heroes?"