From the back of the book:
Why did the hivers assassinate Emperor Strephon? Why did the
Hivers allow the Third Imperium to fall? What are the Hivers'
plans for the future of humanity?
There are those who say that nothing takes place in charted space without the Hivers having anticipated it, planned it, shaped it, brought it into being by patient, careful manipulation.
The Hivers are the manipulators-emotionless, perfectly rational beings possessed of infinite patience and subtlety. If interstellar history is a clock, the Hivers are the ones who wind it; the passage of time itself does their bidding.
If a tree fell in a forest, and no one was there to hear it, would it make a sound? And how come if there are trees falling down, you never see any Hivers running around with axes?