Winter Ihernglass poses as a man to enlist in the Vordanai Colonials and must form an allegiance with a new colonel, appointed by the king to restore order, after she's promoted to a command post.

War seethed across the planet. Machines soared through the air, churned through the seas, crawled across the surface, pushing ever forward, carrying death. Earth was engaged in titanic struggle. Germany, Russia, France, China, Japan: the maps were changing day by day. The hostilities spread in ever-widening ripples of destruction: Britain, Italy, Africa...the fate of the world hung in the balance. Then the real enemy came. Out of the dark of night,...

Tavi of Calderon, now recognized as Princeps Gaius Octavian and heir to the crown, has achieved a fragile alliance with Alera's oldest foes, the savage Canim. But when Tavi and his legions guide the Canim safely to their lands, his worst fears are realized.

"In order to end a years-long war between vampires and mortals, Isolde must wed vampire king Adrian Aleksandr Vasiliev. But surviving the vampire court doesn't prove to be nearly as difficult as resisting the intense attraction between her and Adrian"--

"Nothing is as it seems in the halls of the Emperor, and the fate of the galaxy rests on one woman's shoulders. Harrowhark Nonagesimus, last necromancer of the Ninth House, has been drafted by her Emperor to fight an unwinnable war. Side-by-side with a detested rival, Harrow must perfect her skills and become an angel of undeath -- but her health is failing, her sword makes her nauseous, and even her mind is threatening to betray her."--Publisher....