Kozloff, Sarah. Nine realms #2

"A Tor Book"--Title page verso

"The soldiers of Oromondo have invaded the Free States, leaving a wake of misery and death. Thalen, a young scholar, survives and gathers a small cadre of guerrilla fighters for a one-way mission into the heart of an enemy land. Unconsciously guided by the elemental Spirits of Ennea Mon, Cerulia is drawn to the Land of the Fire Mountains to join Thelan's Raiders, where she will learn the price of war"--