I will tell you the correct order of things. Tell me if you followed them or if you deviated in some way. It will help me to find the bug.
- Get the quest
- Talk to Tailor in her house
- Talk to tadeas
- Go to his hut and get the bottle
- Get ambushed
- Deliver the bottle to Tailor
There are some variations and some steps are not mandatory, but you have to talk to Tadeas first before taking the bottle. If you try to take the bottle before you talk to him, your character will say something like “I don’t know if this is the correct bottle.”
As for the bloodstone, there is one in the deepest part of the caves and another one in the spider dungeon. You need a dynamite to get that one though.
To get the one in the caves, go to the main cave with the metal door (either through the beach cave with dynamite, or the wooden bridge cave by using rope), go to the bottom right and go to the next area. In this area, there should be some stairs leading down. Go there. Follow the linear path untill you see small wooden bridge. Cross it and there should be a bloodstone next to a backpack on the ground.