Chaos Chronicles
Book 4: Sunborn (Hardcover)

John Bandicut and several aliens and artificial intelligences have been thrown together by a force greater than themselves to prevent cataclysmic disasters on an interstellar scale. Now, before they can take a break after a world-saving mission, they are pulled into a waystation that is being threatened by highly destructive gravity waves.

The waves are part of a much larger problem. Something is causing stars to become unstable and go prematurely nova--they're being murdered. When the waystation is destroyed by the gravity waves, Bandicut and his crew barely escape on a jury-rigged ship. Their destination is a star nursery in the Orion Nebula, where sentient stars are being driven to destruction by an artificial intelligence bent on remaking the cosmos in its own image.