Aeon Stone
Item 5+
When you invest one of these precisely shaped crystals, the stone orbits your head (or another visible part of your anatomy if you don't have a head) instead of being worn on your body. You can stow an aeon stone with an Interact action, and an orbiting stone can be snatched out of the air with a successful Disarm action against you. A stowed or removed stone remains invested, but its effects are suppressed until you return it to orbit your head again.
There are various types of aeon stones, each with a different appearance and magical effect. Each aeon stone also gains a resonant power when slotted into specific items, such as weapons with the aeon trait or antique magical devices called wayfinders.
Aeon Stone (Guiding)
Item 15
Aeon Stone (Navigating)
Item 16
Aeon Stone (Projecting)
Item 13
The resonant power allows you to cast mind skewer as a 1st-rank occult innate spell once per day.