Humans only found a way to get there a good deal later.
Finally, they were able to fall back so far that the humans could no longer find them.
Now, when humans have just found their part of the Stone?
Humans find it hard to share space with other animals.
Humans are social by nature and find meaning in relationships.
"The old humans have already found out about the plague?"
Everything was on a scale about a third smaller than humans would have found comfortable.
"I have never seen humans find so much to laugh about in such a stressful situation!"
The old humans who were exposed to it found their health was suffering.
However, the humans retaliate and find a way to break the mind control.