There is a horse race happening in Hell. Hell is very rocky and prone to earthquakes, so the best place for the racetrack is on a river of molten lead. This makes for a flat course with obvious boundaries.
The horses are 800kg robotic hell horses so they don't mind the heat of the lead. The jockeys are Devils in 200kg war chariots slays.. I mean sleighs ..which everyone knows are fireproof. No one is at danger from the lead being molten. The difficulty is how to run on the surface.
Molten lead is a very dense liquid, even at balmy 400°C summer race nights in Hell. Slightly less dense than Mercury tho. And you can float in mercury only up to your calves!
Ooooh Indeed Cody!
I wonder what should the horses feet look like in order to run properly on the river? While Cody can float in his tub of mercury, he would have trouble running since his ankles are submerged.
I would expect a good type of foot should be wide to keep the ankle above the waterline, and have hobnails to provide extra traction. Is there anything I have overlooked about the properties of lead that make it harder than that?
Don't worry about the feet not working on land -- everyone knows robotic hell horses have transformable feet.