We knew it was Agatha All Along, but the cunning witch sealed up the first season of her Marvel spinoff series on Wednesday in what may be the one of the worst road trips ever. The sorcery-heavy mystery show took viewers from a campy slow-burn story into an ominously satisfying place.

The biggest unanswered question, however, one that the finale didn’t even hint at despite it coming up early in the show, was how exactly Agatha got the Darkhold, essentially the most powerful supernatural tool in existence, and one Wanda studied relentless in her Scarlet Witch era to surge her power and accelerate her evil turn.

Aubrey Plaza's Rio Vidal was revealed to have been Death all along. Here's everything you need to know about the character before the 'Agatha All Along' finale.