A entity sealed and abandoned within blessed box that eventually found its way to the library's doorstep.

While this entity refuses to relinquish its true name or origins it is strongly believed to be a powerful Demon given how rampently it attempts to locate the previous owner of the box who subsequently was suspectes to be its original host or incidental congerer.

Unlike the the rest of the inhabitants of the library Nokrilis is in no means safe to engage guests or customers, the creature's uncontrollable appetite for pain and duress have marked him as highly dangerous.

He does not allowed to be left alone unsupervised as it has on multiple occasions attempted to engage and devour the more docile inhabitants, inciting violent confrontations with the Sentinel.

While initially the librarian sought to locate the victim of this Demon but has since abandoned this option as the unstable creature shows obvious signs it would most likely kill it's host if allowed to reattach to them.

Instead they are currently seeking a stronger host to attempt to tame and control the destressed spirit, but has yet to find a suitible host.

Nokrilis seems to get along with Yorshka and oddly enough has never attempted to violently engage the siren, this could be due to the siren's passive subduing ability.