For those wondering where Ms. Leyana's cave was exactly.
You'll find L19 Feffoid Outcasts and Bandits there. You have to clear them up and find a crystal.
The reward is 5 tokens.
Only problem I got was finding the exit.
After clearing and picking crystal, I searched the cave about 7,5min.
Then I tried to use TP chip to get out, doesn´t work.
Finally hit the T, then I spawned at the exit and the exit arrow apeared next to may
there were no mobs in the cave when i entered. Not until the third time i entered the cave did any mobs spawn.
That would suck if you went on a beacon and no mobs spawned.
I could not find all of the feffs it seems...I thought I had killed all...ran around in circles to find this chrystal...when I found it in the end I couldn't do anything with it...as if I had missed one or more of 'em...
When I left the cave and reentered, the counter was reset and I didn't feel like doing it again :|