In What does "yet" mean in this sentence? the OP quoted the following sentence, together with another one.
Finally, even if the scroll didn't point to real treasure, it has yet to be found.
Why is the sentence using "it has yet to be found" and not "it has not been found"?
Does the first phrase mean there are chances to find it, or that somebody is looking for what the scroll is pointing to?
Reading the other sentence, I would take there are few chances to find the treasure, except in the case somebody is able to understand which locations are described in the script.