This time it will take more than a coffee addiction and admin access to the laws of physics to survive. When a new kind of imaginary number is discovered with the unusual property of bloodlust, math anxiety becomes mortal terror. Ace and Heather will stop at nothing to make smart remarks and avoid accidentally destroying the universe again as they struggle to stop a mysterious serial killer with a propensity to imitate small appliances. Is there a recursion limit on dark oblivion? Is Joey really the Grim Reaper? What will happen if silly putty becomes deadly serious? Do all disembodied hands come with HDMI ports? Is soy milk really the juice squeezed from tofu? How should I know? What were we talking about? Oh wait, I remember: What is the true nature of the formulacrum?