When the Ashen One encountered the consumed king secluded inside a chamber within his gardens, he was found holding thin air, in a way similar as if he was holding a baby and murmuring to himself of the great power his son, "Ocelotte", had; embracing the invisible body of his child and preparing for battle, never to let any harm fall upon him.
During the battle, a baby's cries can be heard, although their origin is unknown. This may imply Ocelotte is present in the boss room, hiding, as Oceiros accuses him of. During his second phase, Oceiros is shown murdering the invisible body before charging at the player.
Ocelotte, being a dragon-human crossbreed, might have the same invisibility powers like Priscilla, another dragon-human crossbreed, which could explain why he cannot be seen in-game, but this is only speculation.
- Cut content from Dark Souls III includes an unused audio file with what appears to be the sound of a crying baby being murdered. This file was probably intended to be used in Oceiros's boss fight during the transition between the first and the second phase, and it would most likely represent Ocelotte when Oceiros is disposing of his son.
- Interestingly, once the second stage of the battle begins and Oceiros supposedly murders his son, the baby's cries can still be heard. This could mean that the crying is merely a manifestation of the King's madness or that he himself could be making the noises.