Himalayas — Barbara G. Tarn

Chase the psychic vampires away from Earth, then deal with the endemic bloodsuckers as necessary.
Raj and Bel are ready to confront the aliens in their Himalayan base. After the concerted effort of the North American and Russian hackers, who broke into the aliens' worldwide communication system, Rainbow Towns are awakening everywhere.
But crossing China brings up another kind of threat. The Earth might soon be free of alien invaders, but that's not the end of our problems. Future Earth's struggles continue as humanity gathers again.