Hints for The Golden Hare (Metal)

1. "Kit golden hare" is a good phrase to search if you are having trouble identifying the second book.
2. One of the books in the pastiche is itself a puzzle, and its solution can be found online. Part of that solution, when applied to the data in the picture, will lead to words that suggest a quote from the other book.
3. The canonical solution to the puzzle book involves drawing on the pictures. The quote from the other book suggests a modification to the starting point of those drawings. Some of the background features of the art should provide confirmation when you are on the right track.