I was burning with a 104-degree fever, my leg throbbing in agony.

Chapter 1: The Boiling Point

The human body is simply not designed to sustain a core temperature of 104 degrees. At that threshold, reality begins to warp at the edges, bending into terrifying, hallucinatory shapes. The air in the master bedroom of our downtown Chicago condo felt impossibly thick, wet, and suffocating, like trying to draw breath through a heavy, damp wool blanket. I lay tangled in sheets that were thoroughly soaked with my own sweat, my teeth chattering with such violent, uncontrollable force that the hinges of my jaw throbbed with a dull, rhythmic ache. I stared blankly at the ceiling of the home I had purchased entirely with my own savings, feeling like a stranger in a tomb.