The Duffer brothers have named Firestarter directly, and it supplies the half of Eleven that Carrie does not. From this book specifically:
- A secret government agency running experiments on university students, whose children are born with the results. The Shop is Hawkins Lab, down to the euphemistic name
- A child with a power the agency created and cannot control, kept as an asset rather than a subject
- The flight: an adult and a child moving between motels and strangers' houses while the agency closes in
- Power that costs the body to use, signalled by bleeding
Carrie is the other King debt inside the same character and it is recorded separately: that one gives the adolescence, the bullying and the catastrophic release. Eleven is built from both at once, which is why the map carries two edges rather than one.