F'ther is guarding the big ladders to Lightbeard. He requires an offer to grant access to Lightbeard.
This is the low-spoiler guide for "Getting to Lightbeard" puzzle in Broken Age. Unlike in normal walkthrough, you get gradual hints on how to solve the puzzle. Click the big button below to see your first hint. If the hint contains a spoiler, you will be warned about it before clicking.