EVIL INCARNATE

"The other shape, if shape it might be called, that shape had none, Distinguishable in member, joint, or limb; Or substance might be called that shadow seemed; For each seemed either; black it stood as night, Fierce as ten furies, terrible as Hell, And shook a dreadful dart; what seemed his head The likeness of a kingly crown had on. Satan was now at hand; and from his seat The monster, moving onward, came as fast With horrid strides; Hell trembled as he strode"

(Paradise Lost, Book II)

Replace the "he's" with "she's" and Milton pretty much hit the nail on the head here.