Cyrakiin

Overview
Over 7000 years ago, the Cyrakiin, the stone elves of the Erinyes, were a highly intellectual race of elves that broke off their Daelakiin brothers and sisters to focus their people on mental advancement. Deeming the daelakiin "too slow", their technological advancement over them was quickly apparent.

They quickly set up a new living quarters on the north side of the Dael'Tharmas mountains, Avlevi.

Over the time that followed, their finest alchemists, engineers, linguists, theologists and machinists worked on advancing the cyrakiin to the next level. According to logs found they mastered machinery to the point where the aging elves were supported and kept alive by mechanical devices in and attached to their bodies.

As they advanced on and on, the newer generations lifespan would increase by hundreds of years before becoming of 'old age'. On average early on their lifespan would be up to 500 years, with the latest generations hitting up to the 1000.

Generation Kill
Around the 4000 years into their development, the older elves would quickly be diagnosed with dementia. Oftenly being harassed and written off as useless. This mental degradation ocurred with every generation, just later on in their lifespan with every new generation. The Cyrakiin feared this, and the ones afflicted couldn't cope with it.

There was little to no care for elves afflicted by it, and they would quickly wither off and die or commit suicide. The few that actually cared for these elders were quickly outcast, set aside from the massive mainstream elven politics.

Mastery
The cyrakiin actually mastered dimension travel, they claim. It is not known whether this implies time travel or alternate reality, regardless of that they build several machines the size of castles that allowed entire groups of elves to travel out of this reality.

Their medical advancements allowed their machines to run on a sort of rock found deep in the Rockmoon Mountains known as "Hellstone".