I've travelled to Shor's Stone, which is under attack by Reachmen. The Companions and the Pact military have marshaled a defense.
Talk to Ree-Zish
Companion leader Vigrod Wraithbane is offering aid to the Pact at Shor's Stone. He's asked me to work with the Argonian, Ree-Zish to break into the Shor's Stone mine.
Imbue Effigy of Life and Effigy of Death
Ree-Zish asked that I channel the corrupted magicka into the effigies. That should lower the energy shield around the mine.
— game journal