Immutable. Arrow of Time Chronicles, #1

When mankind realized Earth would become uninhabitable, Humans built space habitations. Their first allies arrived in 2073 and shared their technology to power ships through space corridors that fold space and time. Only 58 years into their struggle for survival, an enemy emerges. In the wake of this threat an organic menace is only beginning to be recognized, ensuring the annihilation of every living thing if, together, they can't find a way to stop it.
Spacefaring liveship, the Aero, is on a routine mission to the far-flung regions of the galaxy when they receive a distress call from their oldest space habitation outside the Sol System. The structure has been brutally attacked, inhabitants kidnapped or outright killed. The crew aboard the Aero including Astoria Bertoletti, librarian and planet cataloger, and Raze Salen, mankind's emissary, search for clues to explain the unprecedented tragedy.
After several more, similar distress calls from other habitations, the savage pieces of the mystery begin to emerge--and point to the culpability of humanity's short-sightedness and desperation when they first began seeking out alternate spaces in the galaxy to call home. In the midst of the imminent threat of war, Raze and Tori present the immutable evidence of wrongdoing both intentional and inadvertent to their government as well as to their strongest and weakest allies who may have no choice but to desert them in yet another hour of dire need.