Another day in class and time was moving incredibly slowly for the group. However, while Circe was trying to just pay attention to the teacher, and rex. However, she got a tap on her shoulder from Gwen who passed her a note.
Circe whispering: what's this?
Gwen whispering back: Clair, Annie, Julie and I are having a slumber party and I wanted to know, if you wanted to join us.
Circe: are you sure you want an me there? You since I'm an...
Gwen: I spent all summer fighting wizards, aliens, giant bugs, super geniuses. Trust me this is just my normal.
Circe: and what about the other three? Won't they think I'm weird?
Gwen: they might but you always seem to be alone when out of school, so I thought that this could be a good way to help you make some friends.
Circe: but I've got friends, I've got you, rec, Noah, ben Kevin...
Gwen: no offence to them but you need a few more, normal friends. I'm just worried about you.
Circe: well, I guess I could give this a go.
Ben: wait, you're having a slumber party without us?
Gwen: go have your own, you're not invited. Girls only.
Ben: fine, come on rex.
Gwen: it's only 3rd period.
Ben: I hate school.
He looked up to see the teacher standing over him, he's sent to the principal's office where he finds Kevin is also there.
Kevin: so, what you in for?
Ben: I screamed I hate school after finding out that the girls are having a slumber party, and I can't leave to make my revenge slumber party. You?
Kevin: I used rush to pull a prank on teacher, but I forgot to return to normal before the teacher tell for it.
Ben: rookie mistake.
Kevin: if you're pulling a summer party, I want in.
Ben: and why would I let you join it?
Kevin: you want a good party then I'm your guy.
Ben: fine.
After school ended the 5 got a drive back to Gwen's house from frank.
Julie: your house is beautiful.
Gwen: uhh, thanks. I think.
Circe: I've never been to a slumber party before.
Clair: wait really?
Circe: yeah. I didn't really have friends until this year.
Annie: that sounds lonely
Circe: no need to rub it in.
Annie: sorry.
Circe: is that a cast on your arm?
Annie: yeah, I broke my arm last week. Don't worry about it I'm fine.
Clair: she's a little accident prone.
Gwen: good to know.
As the group try to walk upstairs, one of the nails from the stairs come loose and half of the staircase comes loose, a few planks of the wood coming loose sending the girls falling down, Circe trying to hide her Evo powers as she refused to open her mouth until she calmed down.
Annie: sorry.
Julie: I don't see how this could be your fault.
Clair: don't worry about its Annie. I'm sure we'll find another way upstairs.
Julie: where is your dad anyway?
Gwen: I don't know. I guess he's gone getting mom. Looks like we have the house to ourselves for a little while. What do you girls want to do?
Julie: you girls ever played tennis?
Meanwhile rex, Noah, ben and Kevin are just hanging around in ben's room playing cyber sumo slammers.
Nosh: how did you even get this game? It's a Japanese exclusive.
Ben: we went everywhere on summer vacation, spending every day helping people and beating on bad guys.
Kevin: me being one of them.
Ben: yeah, until vilgax tried to take over the world using your antitrix and you decided to disappear until the last day of summer.
Rex: oh yeah, when we fought alien x and saved every version of you in the multiverse, with help from a bunch of different versions of you.
Noah: wait who's alien x?
Ben: just this evil version of me from a different universe who wanted to take every version of the omnitrix to prove a point to every ben that it's better to just work alone and to make every version of me suffer like he had.
Nosh: wait the multiverse is real? I thought that was all theoretical.
Ben: nope, it's real. And so is time travel.
Noah: you're blowing my mind here.
Kevin: welp, this got boring. Prank time.
He turns into skunkmouth and starts shooting goo at ben.
Rex: I forgot how much this stink.
Ben: cut it out Kev, I'm not allowed to use alien in the house.
Kevin: good thing I'm not you.
Rex: we're going to stop this, right Noah?
Noah slowly moved over to Kevin and rex formed his smack hands.
Ben: cut it out you're going to get me in trouble.
Rex: first you're working for providence, and now Kevin. It's like I don't know you.
Noah: you know me plenty.
Rex: this means war.
Kevin: a prank war.
Ben: please don't.
Back with the girls, Gwen and Clair are on one team while Julie and Circe are on the other side, Annie deciding to sit the game out.
Clair: I never thought I'd like tennis this much.
Julie: it's all about finding the right tennis partner.
Circe: I haven't had this much fun since... I actually can't think about it.
Gwen: come on Clair, don't drop the ball.
However, as they keep on playing, the ground shakes and the ball goes flying at Circe, she extends her jaw out and starts screaming, the ball went flying back and got caught in the fence.
Gwen: are you ok Circe?
Annie: wait, your one of those Evo things?
Circe: uhhh...
Gwen: what does it matter? She's still our friend.
Julie: you sent that ball far. I'll be right back.
Annie: sorry, I must have made the ground shake.
Gwen: I still don't get how you'd do that.
Girl: no, it was me.
They all look up to see a face that Gwen was too familiar with.
Gwen: Charmcaster? What are you doing here? I haven't seen you since the forever knight incident.
Charmcaster: my uncle grounded me from magic after your little boyfriend broke my amulet, but after ben and that robot kid fought him in DC, he's given me another magical artifact that I can use to destroy you.
Julie: wait, what is going on?
Gwen: she kind of hates me, and my shields are up in my room.
Annie: ok, so what do we do?
Clair: just go near her.
Gwen: Julie, do you think you can distract her?
Julie: I've got about 5 tennis balls.
Charmcaster: you know I can hear your plan, right? And what shields are you on about?
Gwen: Circe, do you think you could get through that window and get my shields? There just two small metal spheres.
Circe: I'll try.
She extends out her jaw and tries screeching at the ground, flying a few feet into the air, grabbing onto the window and climbing into the open window. As Charmcaster tried to blast her, Julie manages to shoot a few tennis balls at her.
Charmcaster: are these tennis balls?
Julie: yep.
She continues to attack her as she makes sure to avoid hitting Annie.
Gwen: so why does Annie have to stand over there?
Clair: just wait.
As Charmcaster gets more annoyed by the tennis balls she grabs her rune of levitation and caused a lot of the things in the garden to start levitate, including the fence as she throws everything forward, most of the fence hitting her. Clair tackling Annie out of the way.
Gwen: she's cursed, isn't she?
Charmcaster: enough of this. I'm here for Gwen.
Gwen backs herself up against the wall as Charmcaster comes flying at her, Charmcaster being flung into the dirt by Circe screaming at her she throws the spheres at Gwen and after Gwen squeezed them, she gets two energy shields that seems to deflect the magic towards something else.
Julie: it's a good thing your parents aren't home.
Circe: let's wrap this up, shall we?
She screams at Charmcaster with Clair grabbing the rune from her neck and she stomped on it. Knowing that it didn't shatter.
Clair: all out of magic, are we?
Annie: we did it, we fought a villain and won.
Circe: so, what are we going to do with her?
Gwen: let her go. We've got too much to do anyway.
Charmcaster gets up and starts running away as Gwen's parents get home and see the destroyed back yard.
Frank: what happened here?
Gwen: would you believe me if I said a sorceress, did it?
Natalie: at this point. I would.
Clair: here you go Gwen, figured you might want to keep this. Although I seem to be able to use it.
She throws the talisman at Gwen and as Gwen catches it glows for a moment as it floats and then immediately drops back into her hand.
Frank: so, what are we going to do about the yard?
Natalie: I'll get the contractor on the phone.
Meanwhile the boys where just getting to the end of there prank war.
Ben: but mom, this wasn't me.
Sandra: you know the rules, no aliens in the house. I mean just take a look at all of this slime. This had to have come from one of your aliens.
Ben: it's stink fly goo, to bad I don't have stink fly anymore.
Sandra: we'll see about that.
She pulls the omnitrix over to herself and she started turning through all the aliens.
Sandra: with a name like stink fly I was expecting, some kind of six-legged, four eyed creature with a spiked tail and wings on his back.
Ben: that's nothing like stinkfly. Stinkfly is like a giant blue man with bug eyes and wings.
Sandra: then why call him stinkfly?
Ben: I came up with it on the pot, ok? My stinkfly was replaced a while back with jetray.
Sandra: we need to talk about the naming of your aliens. What ever the case, this has to be you.
Ben just groans as Noah and Kevin slip away. Rex deciding to stay and help ben clean up. Ben appreciating the effort, but still being grounded.