Now you have a press. Put the collar in the press. Pick up the cross and use it to operate the press. Now give the collar to father Hubert and talk to him. He will lead you to the village.
Village Talk to the guard.
Give him the box of biscuits. The Shaman seemed to like them. Talk to the Shaman. Ask him to give you the root to save Nico's life. You will find what he needs for exchange.