The 4 heroes reunite along the Ribbon - an ancient Builder Structure that served Tuhal forever as a safe and indestructible road to the other Kingdoms, but after the Godsfall war become tricky and unreliable, often leading unsuspecting travelers to their doom.

They arrive at the ancient granite-block coliseum structure known as the Proving Grounds, to begin their investigation into reopening them for games at the High King's birthday.