World creatures. Book 3. Ivanov S.

Residents of the disappeared city, still capable of struggle, find themselves in a hopeless situation. There is nowhere to retreat. Now everyone must decide on whose side he is and what scares him stronger: slavery or death. The larvae are dropped, to the aliens and their earthly accomplices, former people, to hide the monstrous essence to anything - they introduce the last reserves, the most powerful. Monster attacks follow one after another, two hostile worlds come closer to a dangerous limit. And now the earthlings make their way through the caves of an alien planet, plunging into a robber, mysterious and formidable - to win or perish without a trace.