Whipping Star

The story is set into far future when millions of worlds throughout the galaxy are inhabited by many various species of sentients. Real-time communication between planets is enabled through Taprisiots, strange creatures that can contact almost any sentient on almost every known world. Traveling between planets is provided by so called S'eye jumpdoors. These were created by the Calebans very mysterious beings whose origin is obscure. However, Calebans are disappearing and every time one disappears, sentients die or go crazy.