Macbeth’s downfall is his increasingly brutal murders (of Duncan’s servants, Banquo, Lady Macduff and her son). Macbeth’s second meeting with the witches foresee's Macbeth’s downfall when he has his final confrontation with Macduff and the opposing armies.
"Something wicked this way comes" (page 41 line 45) This means Macbeth has a huge fear of the witches, as they are the harbrigners of prophecies, but they can also be the bringers of death, as as soon as they told him the prophecies, he killed all those who were close to him.
*** Three Rivers Deep (book series) "A two-souled girl begins a journey of self-discovery..." synopsis: https://threeriversdeep.wordpress.com/three-rivers-deep-book-one-overview/ pic source: http://poetrybella.boutique/poetry-elysian-palace/divine-god-poems/
The Norns in Norse mythology are Goddesses who rule the destiny of Gods and men. The Norns spin the threads of fate at the foot of Yggdrasil, the tree of the world. Whereas the origin of the name norn is uncertain, it may derive from a word meaning "to twine" and which would refer to their twining the thread of fate.