From New York Times best-seller and science fiction and fantasy mistress of adventure Mercedes Lackey, Book #4 in the pulse-pounding SECRET WORLD saga of modern-day humans with superpowers. The metaheroes deal with the consequences of their superpowers, but the evil Thulian threat lies in wait.Destroying the Thulian North American Headquarters has not made life easier for ECHO, or the world. The Thulians continue their attacks, first in unpredictable incursions, then with another all-out assault on ECHO, orchestrated against ECHO headquarters across the world.Dominic Verdigris has not given up on his effort to obtain The Seraphym for himself, in order to use her to avert his own fate at the hands of the Thulians. Nor have the heroes of ECHO and the CCCP found life anything but harder.