I THINK the answer to your question is: at the left of the ladder down to the basement are a few bottles. Take those. They Help you Pass Out and have a fever dream where you find Something that you need to kill the Ghost (:
Viewing post in Khnocka Dorra - Knocka Dora 2 comments
Oh, sorry, my bad. You also need a long-bow!
Were you in the hidden hall with the door that opens just sometimes right after a clicking noise you always hear?
There you find an ingredient for the longbow. {:
Also: sometime it helps to read the letters and books. There are sometimes informations hidden that may help
you what to do next. (: