In this real-life detective story, a scientist and writer team up to try to discover how a virus whose closest relations live in bats in subtropical China somehow managed to begin spreading among people more than 1,500 kilometers away in Wuhan.

The mystery -- The copper mine -- Viruses -- The Wuhan whistleblowers -- The seafood market -- The pangolin papers -- Bats and the virus hunters -- Laboratory leaks -- Gain of function -- The furin cleavage site -- The other eight -- Popsicle origins and the World Health Organization -- Spillover -- Accident -- The origin of Covid-19 -- Truth will out -- Timeline.