Elemental Unification. The Alchemancer, #5

The Great Magi's undead elemental armies rise across the earldom. Deep in the Underland, a weapon is forged. The Alchemancer series concludes. Aaron has unearthed the final Alchemist's Forge, but the real challenge lies ahead. He must create the Elemental Unification Device and return to Brighton before the unstable elements, the Great Magi's relentless undead acolytes, or the malevolent Magi himself bring an end to all life. In Brighton, former enemies are forced into an uneasy alliance.
While many believe the path to salvation lies in destroying the Book and Scepter of the Undead, only Ensel Rhe understands that halting the magi's ambitions requires the destruction of the Inversion Engine itself-an action that will extinguish all life in Brighton for good. Serena has never felt more in control of her magic and her destiny. Alongside the mercenary company, the Mavens, she embarks on a perilous mission to rescue their captured allies and stop the Great Magi from reaching Brighton.
But how can they succeed when the magi know their every move before they even make it? Perfect for fans of epic fantasy adventures and intricate character dynamics, Elemental Unification delivers a breathtaking finale filled with magic, sacrifice, and the complexities of friendship.