From the back cover:
A great and dangerous race through the Helmsward Mine has been created by the dwarves of Belgendum. A prize of 1,000 silver coins awaits the victors of the First Annual Minecart Race! The first team down to the bottom of the mine that retrieves the wooden idol of Thrinbor and returns it to the town officials wins. Sounds simple enough, eh?
Who will win the Great Minecart Race?
From the front cover:
The Great Minecart Race is an exclusive adventure for the 2015 North Texas RPG Con. It is designed for four players with experienced adventurers.