Aether-Tuning Fork

Wondrous Item, uncommon (requires attunement by a character with proficiency in Smith’s Tools or Woodcarver’s Tools)

The Aether-Tuning Fork is a vital tool for the wrights and alchemists of The Shrouded Boughs. It consists of a long, two-pronged fork made from a single piece of high-purity aether-glass, mounted on a handle of iron-wood. When struck against a hard surface, the fork produces a clear, vibrating note that resonates with the aetheric frequency of the Mother-Tree.

Properties

1. Equipment Tuning: As part of a short rest, you can use the fork to "tune" one non-magical weapon or suit of armor. For the next 8 hours, the item gains a +1 bonus to attack and damage rolls (for weapons) or a +1 bonus to AC (for armor). An item can only be tuned once per day.

2. Detect Resonance: As an action, you can strike the fork and listen to the tone. If there is a source of active magic or an aether-leak within 60 feet, the fork's tone will become dissonant and its vibrations will intensify.

3. Silent Communication: If two or more characters are attuned to aether-tuning forks, they can use them to send simple, silent messages to each other across a distance of up to 1 mile by vibrating the forks in specific patterns.

4. Fragile: If the fork is used as a weapon, it has a 50% chance of shattering on a hit, dealing 1d4 piercing damage and becoming inert.