Cheerio! 


To be able to craft glue you have to complete the quest Tree juice which is placed on another quest line. 

So what you need to do is just work on you other quests till you get to it, which I'm sure you are very close to,

because all the quest lines are written in a such way that you get everything available on time. 


Here's the complete quest line that leads to Tree juice:

 

  • Rockefeller's Depression
  • Even bigger print run
  • Tough cases
  • Creative crisis
  • Trading company
  • Plague of mice
  • Lost Elephant 
  • Airmail
  • Mysterious Treasure
  • Who has the key?
  • Black Clouds
  • Tree juice


See you soon in New Rock City! :)


Sherlock