Gate of Ivrel is a 1976 science fiction novel written by C. J. Cherryh and was her first published work. It is the first of four books composing the Morgaine Stories, chronicling the deeds of Morgaine, a woman consumed by a mission of the utmost importance, and her chance-met companion, Nhi Vanye i Chya.It is tenuously set in her Union-Alliance universe, but has little in common with other works in that milieu.