From the preview:
To those who worship Cyriss, no tenet is more sacred than the Fifth Harmonic—the belief that the Clockwork Goddess will manifest once the perfect machine is created across all of Caen. The key to this vessel’s completion lies in the geomantic fulcrums of power that cover the world, many in hostile territory. For centuries the cult has been amassing an immense mechanikal army, poised to take the final steps in readying for their goddess. The time has come for the Convergence to complete the Great Work, and they will let none stand in their way.
Devote yourself to mechanikal perfection and transcend the flesh with Forces of WARMACHINE: Convergence of Cyriss, featuring:
• Complete faction rules and profiles for fielding the Convergence of Cyriss in WARMACHINE Mk II, including Unbound formations.
• An in-depth look at the history and science of the Convergence of Cyriss and its enigmatic goddess.
• A painting guide to help you ready your forces for battle.
• Theme Force lists and rules, which allow you to create armies based on specialized forces from the Convergence.