Klaus and Marcel duke it out in a battle royale.

In one corner, we have Marcel, the unkillable King of New Orleans.

Unfortunately, one cant live while the other survives.

I Hear You Knocking

Credit: Annette Brown/The CW

Lets get ready to rumble.

For Klaus, its dear old daddy.

Klaus wakes up from the dream in the Mikaelson mansion (which moonlights as a shack).

I guess no one can be bothered to call the electric company.

He checks on Hope, who is either fast asleep or totally afraid of her father.

Then the blue orb comes for a visit.

Klaus asks Elijah and Hayley to take Hope to the bayou so he can ensure the threat is over.

Marcel is in the exact same boat.

He confides in his girlfriend Sofya that something is off.

While she makes the arrangements, Marcel receives a few visions of his own.

They come in the form of Elijah, who just so happens to want Marcel to kill Klaus.

Side note: Fake Elijahs eyes turn orb-like in the vision.

Hes just as handsome with glowing, blue eyes.

Meanwhile, Freya ignores Keelins flirtatious advances and celebrates her latest creation.

She ditches Keelin and runs to her brother, who has bigger fish to fry.

Freya tries to purify him, but it doesnt work.

So she hands over the dagger.

He could get used to this.

The arrive at Marys house.

She isnt too happy to see Hayley with a vampire.

Elijah leaves and Hayley explains the previous nights massacre to Mary.

She also explains the weird serpent sigil.

Mary has a strange look on her face and then presents her deceased husbands journal to Hayley.

Theres the same picture of the serpent sigil.

Things just got interesting.

All this time, Marcel has been mentally fighting a tag-team vision in the form of Elijah and Klaus.

Both want Marcel to seize his revenge against the Mikaelsons.

Marcel goes after Elijah in a choke hold.

It takes him a moment to realize its Sofya he has pinned against a tombstone.

Well, this is an unfortunate side effect.

Its a good thing Dominic is on his way to fix Marcel.

Klaus is having the same problem.

At first, he isnt fazed by Mikaels taunts.

Klaus even verbally fights back with a few digs of his own.

Klaus claims he would never kill Marcel, even though he has the means to do so.

Then Mikael hits a trigger.

He claims Klaus worst fear is that Hope will loathe him the same way he loathes Mikael.

All of a sudden, Klaus kills Mikael once, twice, then a third time.

Klaus looks around and discovers three innocents on the ground, dead.

If Mikael can make him to that, whats to stop him from hurting someone he loves?

He spies Freya, throat slit.

Klaus rushes over to help her, but its someone he doesnt know.

Hes thankful its not really his sister, but concerned it could have been Hope.

This is a game changer.

Im not sure how this works, but were going with it.

She begins chanting and the blue orb appears.

Freya becomes mesmerized by its power, but Keelin is there to pull her back.

Freya knows what it wants: a blood sacrifice.

Who will it be?

Marcel is going to do everything he can to help himself.

It must be sent back to sleep.

Back at Marys house, Hayley shows Elijah the journal.

They notice how the writing becomes erratic and that the entries no longer make sense.

Hayley wonders if it was The Hollow that made Marys husband kill her parents so many years ago?

This news is worth pondering, but Freya calls Elijah for backup.

Its time to suit up.

Marcel arrives at the abandoned house just before Klaus.

They both fight each other hard, but neither has the guts to finish the other off.

Freya channels Elijah and they somehow make it into the house.

Elijah runs to Klaus aid.

The blue orb comes out to play, but it has a new design element.

Theres a black smoke cloud that forms hands a set of glowing eyes.

Freya throws a potion at it shouting, LEAVE MY FAMILY ALONE!

It technically vanishes, but something tells me you cant get rid of The Hollow that easily.

Later at the dilapidated mansion, Freya claims she cant find any of the magic in Klaus or Marcel.

He doesnt have any feelings toward Marcel.

He didnt kill him because thats what The Hollow wanted.

Speaking of Marcel, hes down in the dungeon where Klaus was for five years.

Elijah reminds Marcel that he is alive because Klaus wanted him to be alive.

Elijah thinks Marcel is the key to Klaus redemption.

Marcel is Klaus biggest weakness.

Rest assured, if Marcel prevents Klaus from his redemption, Elijah will deliver another kind of nightmare.

I imagine it will involve blue orbs and child sacrifices.

Is that just me?

Just when I think it is all said and done, we see Dominic trespassing through the abandoned house.

They had a deal.

Klaus was supposed to die.

Now Marcel is gone.

He points to Marcels blood spilled from the stake to the gut.

Theres a vine growing on it, with thorns.

Dominic: Marcels blood was spilled today.

Hes the only one who can kill an Original.

The Hollow has received this offering and has given us a gift.

A single scratch from this thorn will kill an Original.

Where did Sofya dig this guy up?

Heres hoping all the Mikaelsons wear long sleeves in the upcoming weeks.

One scratch and POOF!

Were you rooting for Klaus or Marcel?

Do you think that Hayleys family is the reason The Hollow is out to get them?

How much would you pay to see Elijah in jean shorts?

His legs have to look pretty good too, right?