Hello Droid,
I am currently playing book II and I am wondering how to advance the quest "Lancaster". I have purchased a bottle and now it says that I should wait for an opportunity to give it to Katie. I am already at the end of the second act of book II. Will the quest be completed later ? I looked in the wiki but it is unclear. In one place the quest is quest is marked "to be continued" (which is strange, since book II is supposed to be complete), and in another place if I remember correctly it mentions the quest as completed (but it doesn't really explain how to do it).
Also, does the choice of the bottle have an impact on the quest and does the completion of the quest has an actual impact on the relationship between the characters (for exemple during the scene when you visit Katie after she has healed from what happened after your first mandatory encounter with an outsider)