Built out of words, it is the engine that drives the plot of his book and also the movie, in which another object is created: a prop that has to represent the thing that Hammett created out of words, inspired by the Kniphausen Hawk, and this represents the falcon in the movie.
Tam nebija vizuāla izskata, tas ir dzinis, vārdiem aprakstīts priekšmets, kas spēlē svarīgu lomu, gan grāmatā, gan filmā: priekšmets, kuram ir vizuāli jāparāda to, ko Hemets aprakstīja ar vārdiem. Šis tika radīts iedvesmojoties no "Kniphauzeras vanaga" un parāda šo piekūnu filmā.