Envoy stays with the Svartifin in the heart of Behemoth, and learns more about the strange mystical mechanisms put in place by the Sifras, and how the Svartifin are instrumental in maintaining them – and how badly they've broken down over the ages. Envoy explains a substance that she refers to as timestone, and gives a formula to one of the Svartifin, Voidstar, on how to produce it. Voidstar comes back with a sample, and while the resultant material is not exactly what Envoy had in mind, it does hold some promise as a possible means to repair some of the damage to the "engines" of the Primus System.