Use the Excelsior to create an alternate timeline for the tailor quests. The king comes to you and tells you about a tailor who has made a belt which gives him the power of 7 men. He is holed up in a castle and is sending his friends with armies to kill you. Please can you root him out and retrieve the belt. You could do the same with other quests. This would give the Excelsior an extended use for the people who have the book recipes.