Disclaimer: The only part of Castle that I own is the TV on which I watch the show.

Uh-oh, I don't know what Mom and Dad are going to say. And Gram and Granddad and Alexis. The only ones who knew at first were Scrapple and me. I decided to tell Docky in case he could help, so he now he does, too. But that's all. They'll find out pretty soon. Wow. This a different kind of amazeballs, gigantic amazeballs.

Here's how I found out.

Last night Mom was reading me a bedtime story, Pretzel and the Pups. It's another book about Pretzel the dachshund except now he and Greta the dachshund have five puppies. Scrapple and I love it because Pretzel gets into lots of trouble. After Mom finished we sat in the rocking chair for a while and Scrapple was on the floor next to us.

"Hi, Eliot."

"Oh, hi EB. How did you like the story?"

"Fine. But I'm not EB."

"Don't you like your name? I thought you said you did. Do you want me to call you something else?"

"EB likes the name EB, but I'm not EB, I'm the other one."

"The other one who?"

"The other baby. Your brother or sister. I don't have a name. Can I get one?"

"What? There are two of you? I thought EB was all alone in there like I used to be. I'm confused. Can you get EB, please?"

"Okay."

"Wait! Wait! Other Baby?"

"Yes?"

"Are you sure you're not EB and playing a joke on me because you know I love jokes?"

"Nope, I'm not. I promise. Hang on."

I heard some swishing noise, which was probably Other Baby swimming around, and then I heard EB.

"Hi, Eliot."

"I want to make sure that's you. Can you and Other Baby say something at the same time so I know there really are two of you?"

"Sure. What do you want us to say?"

"I dunno. How about 'Hi, Scrapple'."

And they did! There really are two babies. Scrapple was so shocked he couldn't think of anything to say, and that never happens. He's a chatterbox like me. Then I thought of something important.

"EB, how come you never told me about Other Baby before?"

"Didn't know it was here. We live in two different sacs and I never noticed Other Baby because it was always behind me and it's smaller than I am. And then yesterday it said hi and I turned around and said hi back and I asked why didn't you talk before and Other Baby said, 'I didn't have anything to say.' It's nice to have company down here, though."

"Yikes, that must have been a big surprise. Um, I have to go to sleep now. I'll talk to you guys tomorrow."

Usually I don't want Mom to leave but right then I did because I really had to think of a plan of how to tell her there are two babies. I thought and thought and then I figured it out. I could tell Docky and he could tell Mom and Dad.

This morning we were having breakfast and I kept trying to get out of my high chair for my plan.

"Eliot, what's going on?" Mom said. "You have to stay there until you finish eating."

So even though I love apples I pushed the pieces off the tray and said "no" and Scrapple got them. Then I tried to get out again.

Dad told me to stay there, too, and gave me a piece of toast which I dropped for Scrapple even though I was hungry. And then I tried to get out again.

It worked! Mom said, "somebody's being a fuss budget," but she had to leave for work and so Dad decided I could get out. That was my plan. I held out my arms so he would put me on his lap. That was my plan, too, because I wanted to see his phone which was on the table in front of him. I pointed at it. "Doc."

"What, Eliot?"

This time I smacked the phone. "Doc."

"I'm sorry, I don't know what you want, buddy."

Geez, Dad. Okay, I'll say Docky's name a whole bunch of times. "Doc! Doc! Doc! Doc! Doc! Doc!" And I put my hand on the phone again.

"Oh! You want to call Doctor Perlmutter?"

I nodded my head.

"Well, I think he's at work, so I'm not sure we should bother him."

No, that wasn't good. That wasn't my plan. Dad hates it when I cry, so I decided to do that and say Docky's name again, too.

"Shhh, shhh, don't cry. I'll tell you what, I'll text him and see if we can stop by sometime to day to say hi. If he has time. Okay?"

I nodded and then I smiled so he would know I was happy. And Dad texted him. Almost right away his phone rang.

"Hi, thanks so much, Perlmutter. I don't know what it is, but your little friend here seems hell bent on seeing you today. Would you mind if we swung by later, brought you a cup of coffee? Just for a minute."

And Docky must have said yes because afterwards Dad said we'd see him at eleven.

Dad and Scrapple and I took the subway to where Docky works. As soon as he came out I said "Boh boh la ffff" which he knew meant I had to tell him a secret.

"Castle, could I ask you a small favor, please?"

"No favor too big, Perlmutter, since you let us interrupt you like this. What can I do for you?"

"I got called in very early and didn't have a chance to eat anything. You very kindly brought me this coffee, but if I look after Eliot and Scrapple, would you be willing to go to the deli around the corner and get me a bagel with cream cheese, please? I don't want to leave here, just in case."

So Dad went off and I thanked Docky because he was so smart to think of that! Then I told him about the two babies. He put his hand on his mouth and then he rubbed his head. He kept starting to say something and then he didn't but finally he did and he told us when there are two babies inside they're called twins.

"Are they boys or girls?"

"I don't know. They could be boys or girls, or one of each. We'll find out when they're born."

"A lot of people thought I was going to be a girl but I'm not."

"No, you're not. You know, I was sure you were going to be a boy."

"You were? How come?"

"I just was."

"So we were friends even before I was born?"

"I think we were."

"You can tell Mom and Dad there are twins, right?"

Docky smiled and said, "Well, Eliot, you know, I think maybe your mother's doctor should tell them."

"But you're a doctor, why can't you?"

"Doctor Fisher is a special doctor for women who are having babies, and it's better if she tells them. They're going to have a lot of questions that she'll be able to answer, okay?"

"Why didn't Doctor Fisher tell them already?"

"She probably doesn't know yet. But she has a special machine that she'll be using very soon to make sure everything is all right. The machine lets you see how the baby is—how the babies are—doing, and takes a kind of picture of them, called a sonogram.

"Oh, I remember that! That was when they put that cold stuff on Mom's stomach. I nearly froze in there. Are you sure the doctor will take that picture soon?"

"Oh, yes, very sure."

"Can I ask you something else? Other Baby wants a name. Could we use the initials? What are they?"

"Ah, that would be O, B. Obi."

"Like Obi-Wan Kanobi! Dad has an action figure of him. Obi is a cool name, right?"

"An excellent choice. Oh, look, here comes your father."

We stayed a little bit and then Docky went inside and we went to the subway. I guess Scrapple and I just have to keep the secret about the twins for a while. At least when Mom gets home I can tell Other Baby the new name, Obi.

Okay, I was finished with this part of the story, but just before bedtime Mom and Dad were talking about, guess what? Tomorrow she has the sonogram! So I'll finish this tomorrow.

I'm back. It's today, the day that yesterday was tomorrow. In the morning Mom said, "God, Castle, I'm a whale already. I swear I wasn't half this big at three months with Eliot."

"Ooooh, Mom, I know why!"

"Well, every pregnancy's different."

"I'm aware of that, Castle. And you were supposed to say that I'm not a whale."

"You're not a whale. But I'd love you even if you were, Shamu."

I don't know who Shamu is, but Mom laughed. While she wasn't looking I put Peter Rabbit in her bag so he would be with EB and now Obi at the sonogram. But then they decided I was going to go with them, and afterwards Mom would go to work and Dad I would come home.

When we were in the waiting room, Dad said that he had read that the baby's vocal cords were developing.

"Did you hear that, EB and Obi? I think vocal cords are what let you make noise. Like when I was born I really yelled and Dad said I was the noisiest kid on the block. Maybe you can practice while you're in there."

Mom had to go in by herself for a while to see Doctor Fisher and then someone came out and said we could go in her room.

"Castle? Look what was in my bag." She held up Peter Rabbit. "I found it when I was changing."

"Aww."

"Did you put it there?"

"Nope.

"Did you put it there, sweet pea?"

I nodded.

"For the baby?"

"Babies. Two babies."

But Doctor Fisher and a helper came in so we didn't talk any more about Peter Rabbit. They put that goo on Mom's stomach and asked if she was ready and she said yes. And right after that there was a whoosh and another whoosh which were the babies' heartbeats and everyone kind of screamed TWINS! at the same time. So it's not a secret any more.

Dad was hanging on to Mom's hand the whole time, and he said, "Oh, my God."

And Mom said, "Oh, my God."

And I clapped because it was exciting.

Everyone was talking so much I couldn't keep anything straight, but when they finished instead of going to work Mom came home with us. We got in a taxi and she kissed Dad right on the mouth and he kissed her right on the mouth and she put her head on his shoulder and said, "Oh, my God. Three under two."

I don't know what that means, do you?