Keystone
From Some Other Scotland
Keystones are spherical, patterned devices carried by The Sidhe.
They act as keys to Sidhe locations and vehicles.
They have the ability to open many standard locks and provide a source of light, as demonstrated by Tania in chapter 17.
Used by
Harald remotely activates the keystone found by Craig.
Tania uses hers in chapter 12 to activate her Ship and in chapter 15 to access the Traigh.
