Most people, that live in the Silence, live in towns and cities, that have been there for decades. With the constantly changing network of tunnels there really is no good way to move about, in fact there is very little merit to that. But there is a tribe of people that keeps moving. That tribe is call by others in the Silence as the 'Stone Striders'. They have the unique ability to swim trough stone and dirt like it was water. They are a friendly folk with tales to tell and food to share. They don't seem to be poor either. But for some reason they are always in a hurry. What are they running from?
Stable as a stone
You can concentrate on two things at once. But when you lose one concentration unwillingly then you also lose the other one.
Earth Stride
You can burrow through nonmagical, unworked earth and stone, without disturbing the material you move trough. While you are completely submerged in the ground you are blind, deafened and cannot breathe. Furthermore if you end your turn completely submerged then you lose all active concentrations.
Unstable existance
You have disadvantage on concentration saving throws. You 'Earth Stride' trait is always active. If you wish not to sink into the ground, then you need to use a bonus action to start concentrating. While you are concentration in this way, you can walk on natural ground without sinking in.
