Seven Kingdoms: Seowyn's Crossing
The General is a powerful spiritual entity that has come into contact with Tristan Holdfast and has become his arcane patron. Unlike many of the other beings who have offered Tristan their powers to wield, the General offers a path to wielding the energies of life and the Astral Sea. Tristan has begun to embrace this path fully, setting aside many of the powers he has wielded before.
The identity of the General is a mystery, but most evidence points to it possibly being Seowyn Greenfields.