An American intelligence agent goes to the very heart of Tibet to find out how real the prophecy about the Fire Princess, who is ready to destroy the whole world, is, and ends up in a city - a stronghold of a lost civilization, where monstrous devices are preserved that can destroy all life on the planet... In the novel "Marauders of the Universe", the second included in this book, the Earth is threatened by the Neptunians - disk creatures forced to live on Triton due to the loss of heat from their home planet: using a force beam, they force the Sun to rotate faster so that it splits in two and Triton has its own star...