Slavemakers is a sequel to Joe Wallace's Invasive Species, but there is no need to have read the first book to read and appreciate Slavemakers. I was as hooked in the first ten pages as I was by Invasive Species. The imagery was vibrant and allowed me to visualize every step, every action by the characters, to the point of hearing their voices in my head. Every page felt as if I was walking the journey alongside Malcolm, Kait, and Aisha, experiencing every momentary rise of hope and shiver of fear. The future portrayed in Invasive Species and Slavemakers is poignantly plausible, requiring only a few evolutionary or genetic tweaks and mutations in a species to bring about. This amplifies the fear the books impart, as well as the intensity of the experience. And yet, at it's core, it comes across more as an examination of human nature than anything else. The characters provide insight into their own humanity as well as both our modern world and simpler times, particularly our true place on the totem pole in nature. I would highly recommend this novel and its precursor to anyone who loves good scifi, good literature in general, or even is just looking for something to read on a long plane flight.