Following the trail of an Evo defector, Addi and Mila pose as Evo employees on a spacestation, risking everything to find the truth. With the clock counting down until their cover is blown, they are forced to question themselves - and their motivations - every step of the way. Can Addi conquer her own fears to save the Ancient One? Or will she be captured by Evo for their own nefarious plans? Every secret will be uncovered in this series finale. This explosive ending to The Biokin Chronicles will have you gasping for air. This is the fourth and final book in The Biokin Chronicles.