Mason is back -- as a ghost (told you so, Brooke). First he role plays with Damon, but this time Mason is the torturer and Damon is the victim. After working through their issues, Mason says he's back to save Tyler (whom we never see) from Satan Klaus's clutches. He brings Damon to a booby-trapped cave to look for some MacGuffin that will help them defeat Klaus. Damon, of course, trips all the traps. They finally get to the spot Mason has been looking for, but some anti-vampire mojo keeps Damon from entering.

After being tortured by, but before going on his excursion with Mason, Damon tells Bonnie that Mason is back, and it's her fault. He tells her to get cracking on reversing whatever she did last week that made the ghosts somewhat corporeal. Bonnie's all for that at first, because it will get rid of Anna.

Elena can see Anna this week, and she can see Jeremy KISSING Anna. Elena tells Caroline and it's not long before Bonnie finds out. Bonnie learns she needs Elena's necklace to break the spell, but it's not at Mossy Manse like Damon said it would be, and nobody can reach Damon, because he's spelunking with Mason. Eventually, they figure out that Anna took the necklace. Elena convinces her into giving it up and letting Jeremy get on with his life among the living. Jeremy delivers the necklace to a devastated Bonnie, but he doesn't help her do the spell. Ghost Grams returns to do that heavy lifting.

Ghost Lexi is back, too. She gets right to knocking out Stefan and locking him up on the Torture Emporium, and gives Elena a crash course in Ripper Detox 101. Somehow (and I'm still not clear on this) Lexi manages to make it feel to Stefan as if he's gone without human blood for yonks. He tries to prey on Elena's sympathy, but while she can't stand watching Stefan suffer, she can't stand his lying-ass murderous ways, either.

Bonnie and Grams complete the spell just as Mason says he's found what he was looking for. Once Mason disappears, Damon enlists Alaric to help him, because he still can't enter the chamber where the MacGuffin is. When Alaric gets there, he finds cave paintings, which we will learn about next week.

After Bonnie's spell is done, it's time for Lexi to disappear, too. She charges Elena to continue Stefan's detox. Elena knows what she has to do and tells Lexi she is free to go. Once Elena is alone with Stefan, she tells him he has to get his sense of hope back. "If you don't, you're going to lose me forever. [...] I won't love a ghost for the rest of my life." You go, girl. And go she does -- that is, Elena leaves Stefan chained up in the Torture Emporium. Yay.

Before Anna disappears, she is reunited with her mom, Pearl (earlier, she claimed she stole Elena's necklace so that she could find Pearl). Mother and daughter hug and disappear into the ether. When Jeremy tries to make up with Bonnie, she tells him off, reminding him Matt was able to let go of his very own sister. That Germ couldn't let go of Anna speaks volumes to Bonnie, so she tells him to screw off. After he leaves, she faces the fireplace where she and Grams destroyed the necklace. When it sparks, something catches her eye. It's the necklace!

There's so much more to tell, as always, including the return of ye olde tomb vampires and how Vampire Barbie kicks the snot out of them. I'll hit all that in the full weecap, which will go up ASAP. In the meantime, please grade the episode up top and join us in the forum, where you can read the writing on the wall.