Liam was under a time limit.
Usan was extending his life by spending most of his time sleeping inside his Inner World.
Through that method, he was able to reduce the 'Ora' and mental energy his body naturally used.
But that was it.
All it did was slightly delay the inevitable.
Not to mention, it rendered him useless in doing other tasks.
That was also why Liam didn't request his help with the Kitsune.
'I have the confidence to get this working without him.'
'Plus, the elders will help me out plenty, so it's fine either way.'
Like so, Liam began his work.
The goal was simple.
Isolate a Zenith's sea of consciousness, and fill it with the Kitsune's mental energy.
Obviously, this was an oversimplification.
The 'mind jack' way of accessing the mental sphere was a perfect tool for this job.