The Axle Clan Canon

The true record of all dwarven law for an entire epoch spans this enormous edifice, cut in glyphs large enough to form caves and walkways. Despite this, nothing at all is known of the Axle clan itself.
Benefit: You may make a History check in place of any Diplomacy check. You are affected by freedom of movement and adamant skin, as the spells, for the first 2 [Rounds] of any [Encounter].