There's more that I want to add to this primordial, but I wanted to post it anyway. What I like so far is that the Sandmen serve as something close to the original elementals summoned by the summon elemental spell. The sandman will do its masters' bidding. It is strong and powerful. Being immune to fire and heat also comes in handy.
More than that, the plane is an attempt to be different. In a future post, I'll expand upon the plane and its other inhabitants. Enjoy!
The plane of Padasar is unique amongst all the known planes for three distinct features. The most disturbing is the presence of earthquakes. Due to the nature of planes in the Astral Sea, it was believed that earthquakes would not occur. Another distinctive feature is the Hashimi Column. The column is an extraordinarily tall mountain that purportedly marks the exact center of the plane. The last distinctive feature is the non-linear flow of time. Visitors to this plane may encounter the Column at only ten thousand feet high on the first visit and find it later at the height of ten to twenty miles.
The sandmen are semi-intelligent creatures that favor areas near hot springs and volcanoes. They lead solitary lives traveling over Padasar in search of food or taking shelter from the weather.
The life of a sandman is driven by two sensations, hunger and satiation. Their main diet is cinnabar ore. It some places it lies on the ground, but it can usually be found about three to four feet below the surface. The sandmen use a shovel-like tool to dig up the ore, using their tremendous strength to break larger ore deposits into pieces small enough for them to eat.
The sandmen have soft flesh and blood of mercury. Their skin produces a small amount of lime, thus serving as the origin of their name. This lime helps them to process their food to retain as much mercury as possible. Digesting cinnabar ore causes them to produce sulphur dioxide as a by-product. Due to the intense heat generated by digestion, they suffer no ill effects from heat or fire. They stand almost eight feet tall with very broad shoulders and blank features. Two white eyes glow from their eye sockets. Their wide mouths provide the illusion that they are smiling all the time.
Once in their lifetime, a sandman will reproduce. In preparation, the sandman will eat as much food as it can. After falling into a deep sleep, the sandman will split into two. When both sandmen awake, they will travel in two different directions.
When they die, they return to the place of their birth, usually near the Column. Their bodies quickly decompose into mercury.