Twitching-eye gem

Barely the size of a thumb, a twitching-eye gem artefact is a precious stone with a paranoid air. When placed upon the ground, the globular gemstone flickers this way and that like an overactive eye, on the look out for approach of the enemies of its owner and alerting him or her when they are sighted in its location. It is in this way functionally similar to the Devotion Allsight and Crystalism/Woodlore Alarm abilities. The artefact is available for sale at the Defensive Artefact Shop in Delos.