When Fate Come's A 'Knocking

Dannys' first red flag that something's up was when he dug himself outta hole in the middle of a park. Second, was that his only memory before climbing out was a strange woman making an (admittedly convincing) claim of being the personification of Fate, and third, was when he could see spirits that no-one his age should be able to see. Spirits like Jack Frost.