Visions in the Dark

All I can remember is being in an underground volcanic tunnel and there is a race going on. The racers have wingless dragons instead of vehicles. One young male rider with white hair (who looks like Moordryd Paynn) and a purple dragon becomes stranded on a small ledge when his dragon cannot make the jump over a lava pit. A chain link barrier appears around them and traps them on the ledge. I am not participating in the race but watching from above (I was floating or something?) and I was upset the the rider on the purple dragon became trapped because I knew him or liked him or something and I could do nothing to help him.