Bloodcrete (The Weirkey Chronicles #6)

Betrayed. Murdered. Reborn. One last chance, to make it right. Theo's adventure ended with his mentor's hands around his neck. The betrayal cost him his friends, allies and everything he had built... but not his life. Though broken and powerless, Theo has one last chance to enter the Nine Worlds, wielding the knowledge and expertise of his first life. This time, he needs more than just power, he needs to unravel the deception that killed him once... and is coming for him again.

Theo is getting closer to ascending to Authority, but the consequences of his actions are nipping at his heels. Old rivalries return, other continents are threatening war, and the House of the Lost is working for mysterious purposes. Worst of all, the Asplundat Movement is finally marching to war. They've begun production of bloodcrete, their most dangerous sublime material, and no one is sure of the consequences...