The Treaty dictates the following terms:
- Humans can kill as many faeries as they like and go unpunished.
- Faeries may not take humans as slaves
- Faeries may not attack and kill humans
- The Book of Breathings was split between the faeries and mortals.
500 years prior to A Court of Thorns and Roses humans and faeries went to war as the humans were tired of being mistreated and ruled by the Fae. The War was so bloody that both sides agreed to sign a peace agreement to end the bloodshed. The six Mortal Queens signed the Treaty along with the Fae, and The Wall was built to keep the kingdoms apart. The faeries were allowed to keep the Northern parts of the world, and the humans were left with the Southern territories.
After Feyre Archeron kills a High Fae another faerie comes back to find his killer. This faerie claims that the Treaty calls for Feyre to either be killed or to go to Prythian and live out her life there for killing a faerie without provocation. This was a lie, though, as humans can kill as many innocent faeries as they want and never suffer the consequences.