There's also a strong tie between this kind of prophecy and Tolkien's (and Anglo-Saxon literature generally's) love of the riddle form; "riddles in the dark" dr

There's also a strong tie between this kind of prophecy and Tolkien's (and Anglo-Saxon literature generally's) love of the riddle form; "riddles in the dark" draws clear inspiration from Vafþrúðnismál, which doubles as both prophecy and riddles. Along these lines, I also recommend Adam Roberts's The Riddles of The Hobbit.