Speak with
Florina

Find this place

You will need to pass route with trolls. If the Troll sees You, you'll have to start again.
The Places where are no Trolls in the sides of You - are the
safe places!
If Troll is looking to Fire Basin near You, don't go or he will see You!
Here is some examples when it's ok to go and not ok to go

Take

from the chest

Come back to
Florina to finish the quest.