Silent Thunder

In a world ruled by lords of illusion - there are only predators and prey!
When Christopher Burrell, a deadly assassin and maverick CIA operative, and Robert Vincent, a cagey veteran FBI agent, team up to investigate a sinister sound and light frequency experiment involving a shadowy corporation and a strange Hollywood New Age cult, they discover a hidden non-human enemy which for centuries has fought a quiet war with silent weapons against humanity.
Can they both survive to save the world from imminent destruction?