The Seeds of Akara by David LaPiana
“The vast cosmos isn’t what it used to be in this clever SF tale.” -Kirkus Reviews.
The universe has died. It has reached its eventual heat death, and no further life processes are possible. But something has gathered all the sentient life-forms that had ever reached a reasonable level of complexity and placed them in a latticework sphere around a last star. A select few know the truth of their existence, and even fewer know its ultimate reason. When a nihilistic, malevolent force releases a pathogen designed to end all life, a young girl and some allies must get to the central world to keep her world from being destroyed to stop the spread of the virus.
Book one of the New Sky trilogy is an epic adventure featuring multiple worlds and characters whose actions will determine whether life continues.