Kosmo

Opposed to Novus, Sentinel of Form and Harbinger of the Unknown 

Kosmo is the Sentinel of Age and Curator of Knowledge. Unlike the other Anti-wardens they do not have a set residence, simply hovering around whatever seems to be of most interest. His age is unknown, however it's certain that they're younger than Novus and Angelic. Most of the anti-wardens think fondly of him, the exceptions being Sellenous and Animus.

Monochromatic and tainted by shadow, he carries a disconcerting aura. Only his eyes show signs of life, flickering with a faint amber light. Despite his appearance, he is quite friendly, albeit in his own way; often playing with smaller creatures in such a way that they believe he is going to kill them, such as dangling them over cliffs or pursing them for miles. It takes many years for a Creature to recognise these traits as friendly rather than threatening, resulting in friendships only forming with those sharing an unnaturally long lifespan.