Beneca

"You are in for a rough stay, but I can make it better. You find stuff you don't need while digging, bring it here. I can trade you crystals that can save your life down there." -- Beneca

Beneca is a fellow prisoner in The Elder Scrolls Travels: Stormhold that is located on the Northwestern side of Outer Camp. You can give him items in order to gain Aid points, which you can then exchange for crystals.