Science and magic lead to danger in this sequel to The Unnaturalists , which School Library Journal called “an entertaining mix of steampunk and fantasy.” After Vespa, Syrus, and Bayne defeated the Grue and restored order to their world in The Unnaturalists , they thought their future was secure. Empress Olivia, committed to peace and equality for humans and Elementals alike, was a fair and just ruler. And the Creeping Waste had vanished, giving them hope for the first time. But rebellion is brewing in the far-off city of Scientia, and dark Elementals are plotting war in the ruins of New London. Before they know what’s happening, Vespa, Syrus, and their friends are plunged into a new swamp of intrigue, deception, and magic—and the cost of survival may be more than any of them are willing to pay.