The vault air tastes of cold iron and old dust, while a faint, tide-like hum vibrates through the flagstones. At the room's center, a small iron cage holds a globe whose blue-green lines drift like currents beneath glass; each turn of its three front dials makes the lines shiver and throws a brief glint across the bars. A worn plaque sits below the dials, and somewhere inside the cage a mechanism ticks patiently.
You enter a close, vaulted chamber where the air carries the taste of iron and dry stone. A small cage sits on a plinth, its bars enclosing a globe lit by slow blue-green currents. Three symbols turn beneath your hands, and a plaque below them catches the light as the mechanism ticks.
The plaque is legible without a check, and the dials turn freely. Let players inspect, compare the symbols, and test the rings. A correct symbol produces a clear, low note; an incorrect full setting gives a dull vibration but no immediate danger.
Offer the different dial tones as feedback before giving a hint. If the group stalls, point out the plaque's ordered verbs, then connect each verb to a symbol. Add time pressure only if the vault is already under threat; keep failed attempts consequential but recoverable.
The vault air tastes of cold iron and old dust, while a faint, tide-like hum vibrates through the flagstones. At the room's center, a small iron cage holds a globe whose blue-green lines drift like currents beneath glass; each turn of its three front dials makes the lines shiver and throws a brief glint across the bars. A worn plaque sits below the dials, and somewhere inside the cage a mechanism ticks patiently.
The cage rests on a waist-high stone plinth among the vault's sealed shelves. The plaque and four repeated dial symbols are immediately visible; a successful Perception check notices the alignment marks and the different clicks.
Plaque beneath the dials
First, the ward must watch.
Then, let the deep receive.
Last, turn the key, and release.
Dial symbols, from top to bottom
Each ring bears four symbols: an eye, a wave, a key, and a flame. Turn each ring until its chosen symbol rests above the small notch.
The plaque gives the intended order, and the three rings each accept one of four symbols: eye, wave, key, or flame. Players can rotate the rings freely; ask them to state the top, middle, and bottom symbols when they try the latch. The correct sequence produces three distinct notes, steadies the globe's moving lines, and releases the catch. A wrong full setting yields a dull vibration and, if they try to open it, the ward pulse described under failure. No check is needed to solve the clue; use the listed Recall Knowledge and Perception checks to assist, and allow Thievery or Crafting as alternate approaches.
Turning the dials is harmless. The ward pulse triggers only when the party attempts to open the latch with an incorrect complete combination.
| DC | Check | What it gives |
|---|---|---|
| 15 | Arcana or Society | Recall Knowledge with Arcana or Society to recognize that the three carved verbs correspond to the dial symbols. |
| 15 | Perception | Perception to notice the tiny alignment marks and that each dial gives a different sound when correctly set. |
| 19 | Thievery | Thievery to bypass the combination through the exposed latch. This is a level-appropriate standard DC for a level 4 challenge. |
| 19 | Crafting | Crafting to carefully force or dismantle the cage without cracking the globe. |
No hint given yet.
The three dials sound in a rising sequence. Blue-green light gathers along the cage seams, the latch clicks free, and the bars part with a soft metallic sigh. The globe remains intact and continues to show its drifting lines.
The ward releases a harmless but startling pulse of cold light. Each creature adjacent to the cage takes 1d4 cold damage, with a basic DC 19 Reflex save. The dials reset, the cage remains intact, and the pulse makes a sharp ringing sound that may alert nearby creatures if any are present. Further attempts remain possible.
The iron cage was made by a long-dead wardwright who wanted to protect a small globe used to monitor disturbances in ancient protective magic. Its combination is a teaching device as much as a lock: the sequence names the ward's three duties, to watch, to receive, and to release. The vault's keepers trusted the puzzle to distinguish patient custodians from intruders, while its gentle ward pulse discouraged brute force without making a breach impossible.
For a lower-threat group, make the ward pulse only produce a ringing alert and reset the dials. For a more capable or higher-level group, increase the pulse to 2d4 cold damage or add a nearby vault guardian that investigates the sound. Keep the written sequence unchanged.
Keep the plaque readable and the symbol-to-verb links fair. The puzzle should take only a few minutes once players engage with the wording. Permit reasonable experimentation, and do not require a check to understand the plain-language clue. The ward pulse is a nudge toward caution, not a punishment loop.
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