Yesterday's Kin (Yesterday's Kin Trilogy #0.5) [J0339]

2014 PB in nice clean condition. Aliens have landed in New York. A deadly cloud of spores has already infected and killed the inhabitants of two worlds. Now that plague is heading for Earth, and threatens humans and aliens alike. Can either species be trusted to find the cure? Geneticist Marianne Jenner is immersed in the desperate race to save humanity, yet her family is tearing itself apart. Siblings Elizabeth and Ryan are strident isolationists who agree only that an alien conspiracy is in play. Marianne's youngest, Noah, is a loner addicted to a drug that constantly changes his identity. But between the four Jenners, the course of human history will be forever altered. Earth's most elite scientists have ten months to prevent human extinction-and not everyone is willing to wait.

From recent-ish Amazon/GoodReads reviews: "A great start to the Yesterday's Kin trilogy. The combination of tragedy, family dynamics, and humor make this science fiction novella a worthwhile read."; "Fun alien invasion story with a twist. They want help and turn our world upside down because they can."; "There were some twists which I saw coming from the start, and some which snuck up on me and I only fully processed a few pages before they were revealed. The concepts which underpin the story are interesting ideas; I felt that Kress put a lot of thought into the biology and culture of her aliens, and their motivations and choices felt just the right degree of inscrutable."