WARNING: If you don't want to know what happened in this episode, don't read this photo recap! 

Bea and Calvin are visited by Aunt Nancy, a friend of the family. She’s got some bad news: the Dredge wants to kill the Hastings family. The good news? She brought sweets. The other news: she’s not related. She’s Anansi, a sorceress believed to have died a hundred years ago.

In order to save the family from destruction, Aunt Nancy puts a spell on Calvin so that they’ll be able to travel back into his memory. What memories? Specifically those related to the death of Arlo.

Calvin is transported back to that fateful and fatal night at the funeral home when the Hastings family suffered heavy losses at the hands of some mysterious forces. Oh, also that Isaac was the one who killed Arlo with a crossbow. Keeping it in the family!

To release him from the spell, Tilly tases Calvin awake. It’s quite a shock…

Calvin submits to returning to his memoryland at the request of Bea and Aunt Nancy. He’s transported to the Alchemy Room, where Arlo has accidentally released an Infernal from its container. The Infernal is intent on Arlo's death.

But not if Momma Hastings has anything to say about it! She does battle with the Infernal, but it gets the better of her. And Aunt Nancy has slipped into a trance, unable to lift the spell. It’s up to Calvin and Tilly to put an end to this.

To interrupt the memory feed, Tilly breaks Aunt Nancy’s mason jars filled with spiders. Aunt Nancy wakes up from the trance, and shortly after Bea recovers her presence of mind.

Tilly, suspecting something is up, snatches Aunt Nancy’s own mason jar from her. It’s got all her memories in it. Tilly demands Nancy tell her what she’s doing here, and she spills: she is trying to get the Hastings in a fight with the Dredge and trick him into thinking he can get the ring. During the fight, they’ll be able to kill the Dredge. At least that’s the idea.

But first Aunt Nancy needs to prepare Bea and Calvin for the fight. How’s she going to do that? By bombarding them with terrible memories over and over again.

Calvin enters and finds his brother struggling with the Infernal. He steps in to kick the Infernal’s ass. But then the Infernal steps into Arlo’s body…and possesses him.

Arlo begs his brother to kill him and defeat the Infernal before it can escape and wreak havoc elsewhere. So in the end…Calvin shoots his own brother with the crossbow. Woah. Isaac took up the crossbow to make it seem like he killed his own son, when in reality it was fratricide.