You find a circular chamber of black stone suspended in a violet haze, its floor just perceptibly tilting toward a bronze console at the center. Three selectors sit beneath a tarnished instruction plate, and thin silver lines run from them to a sealed archway. Every few breaths, blue sparks crawl along the lines with a dry crackle; the air tastes of rain and hot metal. Beyond the arch, a starless dark swells and recedes as if something is breathing against the ward.
You step into a round chamber hanging in violet mist. A bronze console waits before a sealed arch, and silver lines between them flicker with blue sparks. The air tastes of rain and hot metal. Beyond the arch, a starless dark presses outward, then draws back, like a breath held behind a door.
The plate has three numbered lines, each beside a selector. The selectors bear small pictures rather than words. The arch pulses more gently when a selector is turned to a fitting mark, giving observant characters usable feedback. Let players inspect, test, and discuss before starting any time pressure.
Do not start the countdown until the party makes an activation attempt. After two mistaken settings, make the pulse visibly stronger and offer tier 1; if they still stall, use tier 2, then tier 3. Reward reasoning and clear physical alternatives rather than requiring a successful check.
You find a circular chamber of black stone suspended in a violet haze, its floor just perceptibly tilting toward a bronze console at the center. Three selectors sit beneath a tarnished instruction plate, and thin silver lines run from them to a sealed archway. Every few breaths, blue sparks crawl along the lines with a dry crackle; the air tastes of rain and hot metal. Beyond the arch, a starless dark swells and recedes as if something is breathing against the ward.
The console is a safety mechanism for stabilizing a planar boundary. Its instruction plate gives a three-stage operating principle, while the different selector symbols represent possible ways to perform each stage. The repeated sparks and the ordered notches signal that both the choices and their order matter.
The party can inspect and turn the three selectors freely before committing; turning one produces a subtle response when its setting fits its role, such as a steadier hum or a clearer arch, but does not lock it in. The numbered plate establishes the order: establish an anchor, permit a measured passage, then ground the residue. When the group is ready, a character presses the bronze plate to activate the ward. The correct settings are mountain, open arch, and water drop, from left to right. A correct sequence seals the boundary safely. An incorrect sequence or three rounds of an incomplete active sequence triggers the failure pulse. Checks provide clues or confirmation, but are never required to solve the apparatus.
A character presses the bronze plate after setting the selectors, or an incomplete activation continues for one round.
| DC | Check | What it gives |
|---|---|---|
| 12 | Investigation | Notice that the selector slots are arranged in the same order as the three lines on the instruction plate, and that each slot has a different number of possible positions. |
| 13 | Arcana | Recognize that the apparatus is a planar boundary regulator, not a portal that should be opened fully. The runes describe stabilizing, admitting, and grounding energy. |
| 12 | Perception | Hear the low note that sounds when the anchor selector is set correctly, or notice the iris briefly clear when the second selector is correct. |
| 13 | Religion | Recall that the old boundary glyph represents a threshold or passage, rather than a destination. |
No hint given yet.
The silver lines turn white and hold steady. The starless dark withdraws from the arch, which opens onto a stable passage. The console's hum settles into a calm, resonant note.
The arch releases a harmlessly contained planar pulse. Each creature within 10 feet of the console makes a DC 12 Dexterity saving throw, taking 2d6 force damage on a failed save or half as much on a success. The console resets, the arch remains sealed, and the chamber's glow dims for 1 minute. The party can try again after that minute; the ward does not escalate beyond this consequence.
The ward was built by the Orison Compact, a circle of planar surveyors who needed a dependable way to seal temporary breaches without trapping travelers on the wrong side. Their masons engraved the operating principle as a three-part ritual: establish something fixed, let a measured current pass, then ground what remains. The apparatus has guarded this crossing for centuries, and its repeated pulses are the ward correcting itself after each failed activation.
For a less durable level 3 party, reduce the failure pulse to 1d6 force damage. For a more capable party, keep the damage unchanged and have a failed pulse briefly separate the group with a harmless 1-round planar displacement, then return everyone to the chamber.
Treat the pictures as a fair logic problem, not a test of obscure lore. Give the same essential clue through the instruction plate, selector feedback, and successful checks. The group may take time to experiment; apply the pulse only after an activation attempt. If the players propose a plausible physical or magical method that preserves the ward's three functions, allow it with a fitting check or cost.
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