Peace, finally. Or so Selk and Whistler think. Barely after stepping off the plane from a second successful artifact mission, they're confronted with staggering news. Safi, an acquaintance and descendant of Khonsu, reveals his family has discovered an artifact that he and Selk must return together. And Khonsu, the last living immortal, insists Selk and Safi must be "blended"—married—to return it. Selk racks her brain for loopholes that will keep everyone safe without keeping her and Whistler apart. But Khonsu has other plans, going to violent lengths to forbid their relationship. After entering the most challenging, unpredictable Post World yet, she knows learning Khonsu's corrupt secrets are the best chance at survival. And this Post World itself is hiding something that will test just how much she loves Whistler. A test she'll take without hesitation, but one that could finally cost her life.