Haruspii
The Haruspii are the creators of the Haruspic Sphere.
We don't know much about them, except that hey hold the secret to the ability to prolong life.
The Haruspii are the creators of the Haruspic Sphere.
We don't know much about them, except that hey hold the secret to the ability to prolong life.
It is revealed to Anna Rylie in "The Redemptress" that the Haruspii use humans to prolong the lives of the ruling classes from their Sphere.
It is not known, however, why humans are necessary for the process to work. The technology used by the Haruspii is their best kept secret.