Sounding
Fathoms Below
“I’ve seen more men killed by shallow water than deep. The deep gives you time to regret it. The shallow doesn’t.”
Depth is one of the simplest questions to ask and one of the easiest to answer incorrectly.
In open water, a line can be cast and read. In a well, a stone can be dropped and counted. In controlled conditions, tools and methods exist to produce reliable results. Outside those conditions, estimation takes over. Light distorts. Sound misleads. Terrain deceives. A drop that appears shallow can break bone. A pool that looks deep enough to dive into can kill just as quickly.
Sounding exists to remove that uncertainty.
When cast, the spell aligns the caster’s perception with the vertical structure of the space beneath them. For a brief instant, depth is not inferred or approximated. It is known with exactness. The caster perceives the true distance downward to the first surface directly below their position. If that surface is a liquid or non-solid medium, the spell continues the measurement, revealing the full depth from surface to bottom at that point.
The measurement accounts for the reality of the terrain rather than its appearance. Slopes, uneven ground, submerged features, and irregular contours are all resolved into a single, precise value. The spell does not flatten or simplify what lies below. It reveals it as it is.
This makes Sounding particularly valuable in environments where vertical distance cannot be trusted at a glance. Mariners use it when approaching unfamiliar waters where a hidden shoal can tear a hull apart. Explorers rely on it in caverns and ruins where a misjudged drop can end a descent before it begins. Builders and engineers apply it when working with wells, foundations, and shafts that demand exact depth rather than estimation.
The spell is equally useful in moments of immediate decision. A traveler standing at the edge of a drop can determine whether a descent is survivable. A diver can confirm whether the water below is deep enough to enter safely. In each case, the value lies in removing doubt before action is taken.
Sounding is not without limits. It cannot measure what is not directly beneath the caster. It does not reveal hidden chambers offset from the vertical path or provide any sense of what lies beyond the measured depth. If the path downward is interrupted by barriers that block perception or divination, the spell fails entirely. It answers a single question and nothing more.
Among those who rely on it, the spell is treated as a practical tool rather than a remarkable one. It does not grant advantage over the world. It prevents simple, avoidable mistakes.
In practice, that is often enough.
“You can guess a distance and be wrong once. You can measure it and be wrong never.”
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