First, a disclaimer:

This is a revamp of a Nightmare Before Christmas fanfiction I'd written a couple of years back. This is the story of Thorn, daughter of Jack and Sally, and as the way of the fandom goes, Jack's heiress and Pumpkin Princess.

Let's begin.

Midnight on Halloween.

Jack Skellington and his wife, Sally, were preparing for the festivities of the holiday. The ghosts, ghouls, and spooks of Halloween Town were abuzz with frightful delight, seeing their leader. However, Jack and Sally only passed by with brief, yet very warm and heartfelt, exchanges with the citizens. They were on their way to see someone very important: Dr. Finklestein.

Upon entering his lab, he greeted the couple with open arms.

"Jack, my boy! Sally! It's odd, yet still somewhat good to see you. I've been waiting for some time for you to come to me," the doctor said, steering his wheelchair to Sally, his creation.

"So sorry, Doctor," Sally replied apologetically. "You know how everyone is when Jack's around."

"I have an enormous responsibility to the townsfolk and the holiday, after all," Jack chimed in. "As the Pumpkin King, I have to live up to my title."

"Yes, yes, but we are here for another reason, are we not?" Dr. Finklestein interrupted. "I believe we have some work to do, as I recall. Based on what Sally has told me, Jack, she and you are planning to start a family of your own."

Jack blanched, and Sally's cheeks turned a dark blue.

It was true. They'd wanted children for some time, and Jack knew eventually he'd have to step down and pass on his terrifying legacy to an heir. Unfortunately, he had no children, and as the years passed, his previous boredom which nearly destroyed Christmas some time before was starting to return, only because he was running out of ideas on how to make Halloween truly a night of screams.

So, he and Sally had agreed the time had come, for multiple reasons, that it was time to have a child.

"The process should be simple enough," the doctor continued, "seeing as the easiest way to make this possible is to create a being like Sally."

"Another rag doll?" Sally chuckled.

"It would be the most efficient means, yes. And as you know how to, I can aid in getting the necessary materials, but I will allow you two to create your child on your own. Sally, you are a gifted seamstress, and can sew yourself back together. This will be a useful skill for this task. And you, Jack, can give him or her a resemblance to your frightening image, which will be carried on through the ages, it seems.

"Now, then, I believe the time has come to get started, is it not?"

Following a brief nod from Jack, the three set to work.

With a pale, almost pure white cloth, strands of fine hair, and dead leaves, Sally stitched together a little body, the size of a newborn baby. In the process, she and Jack agreed that the baby should be a girl, and she stitched it accordingly.

By the end of the process, as the sun began to rise over Halloween Town, Sally held a little cloth baby with white hair and sharp fingers resembling Jack's bony fingers. The little cloth girl had a smaller, thinner version of Jack's mouth, and the eyes were merely sockets, as no eyes were needed. They could open and close, with a great deal of effort put in by Sally's part. Stitches pulled her together in a similar manner to Sally.

"Look at her, Jack," she whispered. "She's beautiful."

"Like her mother," Jack beamed, wrapping his long arms around his wife and new, though still inanimate, daughter.

"Now, let me see her, Sally, so I can bring her to life," Dr. Finklestein said, cutting in and holding his arms out. Sally carefully placed the baby in his arms, and he wheeled away before placing her on a table.

With the flip of a lever, and various other scientific acts, slowly, the baby came to life, cooing happily. Jack and Sally together scooped her up very gently, and with her tiny, claw-like hand, she touched her father's bony cheek and exploded in a giggling fit.

"So curious, and easily excited," Jack muttered, a quizzical look on his face. He looked at his daughter, and watched the expression so similar to his own light up like a freshly lit jack-o-lantern.

That was before Jack yelped in pain as she accidentally scratched his hand.

Tears filled her eyes, and a whimper slipped from her lips. But Jack was not going to allow it. So, he lifted the little girl high above his head, causing a confused then once-again happy look. She squealed in excitement.

"Thorn. My daughter. My little Pumpkin Princess."

He lowered her, and cradled his daughter, a yawn escaping her tiny lips before she snuggled into her father's arms.

"Thorn? Why that name, Jack?" Sally asked.

"I think it suits her best."

Sally looked at her daughter. She was falling asleep quickly, and her breathing slowed. Her claws reminded her of Jack's bony hands, and they were made into artificial claws. Like little thorns.

"Thorn... I like it. Thorn it is."

When they left the laboratory after a long conversation about her, Sally was carrying a sleeping Thorn in her arms, Jack carting some essentials behind her, and on that Halloween morn, the heiress of Jack Skellington came to be.