View source for A History Of The Spirit Tower 3

<pre>Many years after the War of Night, when the Spirit Palace had become
fairly well established, it was noticed that some strange activity was
happening in the caves of Mount Enrien.  Unsettled by this, as it was
very close to the prison of the demon lord Kzroth, a few scholars were
sent to explore and establish what had happened.

In the mountain they found a group who referred to themselves as "Kohli"
and appeared to be the last remanents of a race which had lived for many
years deep underground.  Observing the kohli while invisible, it was
eventually deduced that some massive, evil creature had forced them from
their homes, and was responsible for their now sparse population.  The
amber dragon, upon hearing the details, realized it was the void dragon
Tzet-Sabanthe.  Knowing the pure corruption and evil that the dark dragon
was, the amber dragon sought it and drove it off, unwilling to allow it
to destroy an entire race.  The kohli, thankful and awestruck, came to
worship the amber dragon as their diety, and elected to stay in their
new city, close to their god.  It was not until sometime later that the
details of this were discovered, however, due to the generally seclusive
nature of the amber dragon.
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