I think it's "Pictures display information when written instructions are more complicated". Personally I believe it's just a majorly confusing way of saying: when the written instructions are too complicated they use pictures as well.
Expressions such as "gold-hall" (line 1253), "hell-bride" (line 1259), and "death-den" (line 1276) are examples of: Kennings.
Kennings are compound words often used in Anglo-Saxon literature where two words are combined to generate a figurative meaning.
Often, the compounds words are milder forms of the original noun that should have been used.
So, the compound words above are examples of Kennings.
Learn more about Kennings here:
brainly.com/question/640386
The answer is: dangling modifier.
Dangling modifiers are separate from the word they modify, resulting in ambiguity, confusion or nonsense. In the example sentence, it is not clear which animal is walking the wire - whether the dog or the squirrel. Supposing the squirrel (which is about to fall) is walking the wire, a correct version of the sentence would be:
My dog waited for the squirrel to fall, which was walking the wire.
