A/N: This is my first Librarians story and first story ever for this site. I would love to hear what you think!

The library was gone; again. One moment Flynn and Baird were walking into the main library and the next moment the Back Door slammed shut. Any attempt to reach the Library failed. "I've reset it five times," Jake complained, "it's not working!"

"Maybe it's just a glitch. I'm sure Mr. Jenkins can fix it easily when gets back." Cassandra remarked from the table in the center of the annex.

"I'm afraid that won't be possible," said a familiar voice from the entrance, "you see I've sent that coward away."

"Dulaque," Jake glowered, "I thought you were dead?" Jake stepped closer to the table were Cassandra stood, putting himself between her and the mad man at their door.

"Oh, I assure you, Mr. Stone, I'm not dead. I've merely been waiting for my chance to bring magic back into the world." Dulaque grinned.

"Well, that's not gonna happen," laughed Jake, "the Library is gone."

"So it looks like we can't help you." Cassandra added. They watched Dulaque process the information as he took a few steps toward the back door; unfortunately, he didn't look worried.

"Then it's a good thing I have the secrets to bringing back the Library right here in this book." He held up a small red book marked with a snake on the cover. "All I need is the special magic owned by a person in this very room."

"You mean me," replied Cassandra.

"Yes my dear girl, I mean you. The one whose curse is her greatest weapon." Dulaque studied a book on the desk he stood by then looked back at Cassandra. "And all you have to do is a little bit of math." Dulaque smiled devilishly.

Cassandra thought over their options: Ezekiel was gone on a mission so, who knew when he would be back; Jenkins was missing thanks to Dulaque; Flynn and Baird were trapped inside the Library; and Jake was a quick thinker, but there was no bright side to this situation. Without her, Flynn and Baird and Jenkins may never come back to the annex.

Jake watched Dulaque carefully. He could tell this deal wasn't good. Cassandra was great when it came to math, but he still worried about her pushing the limits. Mind racing, Jake searched for a plan, an idea, anything to keep Cassandra safe.

"I'll do it," Cassandra confirmed stepping in front of him, so much for safe.

"Cassie, no!" Jake protested. He grabbed her hand to stop her.

"It's the only way to save our friends."

"No, you're not doing this," he took her other hand, "we don't know how big this is. This math could be bigger than the Labyrinth. Remember the last time? What if-"

"Jake," her use of his first name stopped his rant. "This is our only option. You have to trust me. I can do this." Cassandra squeezed his hand in reassurance.

"I do." Jake answered. "I always have." He nodded once and she put her hand on his cheek in a silent thank you.

"Does this mean we have a deal?" Dulaque inquired, annoyed.

"Yes," claimed Cassandra as she turned to him. She released Jake's hands to take the book.

"Excellent. Here you are," he gave her the book. "Careful. I wouldn't want you to get a paper cut." He chuckled.

Jake took a step forward, enraged by the comment, but Cassandra braced an arm across his chest. "Relax, Jake. I can handle him."

Her words seemed to sooth the tension in the angry cowboys body. Jake took a step away allowing Cassandra room to think.

As she began to read, the numbers appeared in front of her like they always did. They counted up and down and switched positions in sequence. Cassandra was breezing through them when she hit a speed bump and stumbled.

Jake coached her through it. "Cassandra, connect it to a memory." She nodded and went to her go to memory: oranges and breakfast and Jake. Ever since that first day she had associated him with oranges.

She was doing great, then her progressed stopped. "Five…five…ah!" She held a hand to her head. "I can't," Cassandra wobbled, but Jake steadied her. "I gotcha darlin'. Keep going." Jake smiled her favorite smile. The one that crinkled his eyes at the corners and made them sparkle. She found her strength in that moment. Jake stood her up keeping his hands at her waist for support.

The numbers spun faster around her until a few at a time they lined up in the order that she needed them. The answer to the interdimensional travel of the Library was there. "It's pi." Cassandra reported before a white light clouded her vision and she fainted into Jake's arms. "Cassandra? Cassandra, wake up!" Jake pleaded.