A mithril brace with eye-like engravings and an adamantinum drill bit, this enchanted surgical tool is used to drill a small hole in the recipient’s forehead, thereby unlocking the mind’s untapped potential for supernatural perception, the “mind’s eye”.
Successfully applying the drill requires a DC 15 heal check (, DC 25 for self-application). Failure inflicts 3d6 points of damage and has no further effect. On a successful check the beneficiary’s “mind’s eye” opens for 2 hours, giving him the benefits of a continuous see invisibility effect, 120ft. darkvision, and a +3 bonus on saves against illusions. As his bared mind becomes more vulnerable, he suffers a -3 penalty on saves against non-illusion mind-influencing effects.
The character also gains the following spell-like abilities (CL = HD): -arcane sight, detect thought, clairaudience/clairvoyance. Activating these abilities opens the mind to the insanity inducing background noise that permeates reality and causes 1d4 points of wisdom damage (no save). Characters whose wisdom scores drop to 0 while under the trepanation’s effect are driven insane (, as per insanity spell), becoming delirious lunatics obsessed with truths beyond truth and horrors lurking at the edge of reality.
Moderate Divination; CL 9; Craft Wondrous Item, true seeing; Heal 12 ranks; Price 32.500 gp; weight 2 lb.