 Coxcox tasks the Mexica with battling the Xochimilco and to return with the ears of slain opponents as proof of the killing.Here the codex ends, just before the founding of Tenochtitlan.Indexes by the government of New Spain elucidate that folios lost in the early 19th century documented the wars of the Mexica around Chapultepec fought on Coxcox's behalf.