Summary: It's been a year after the events of The Mummy Returns. Now Rick and Evy must stop an ancient cult from resurrecting Imhotep. But to do this they need the help of someone Rick has not seen in years…his sister!

Disclaimer: Everything belongs to Steven Sommers except Callista O'Connell and this plot.

Chapter 1

It's good to be home, thought Callista O'Connell as she walked into her home in Cairo. Her last adventure proved to be almost a disaster if it had not been for the aid of the mysterious Van Helsing. As she thought back on him she smiled. Gabriel Van Helsing was indeed a very handsome man. She couldn't believe that she was attracted to a person that she knew nothing about. But she knew that she didn't love him. It wasn't there. Besides, Van Helsing was hiding something and Callista wanted to find out what it is.

Her musing stopped when she noticed a letter on the coffee table. She shuddered as she read whom it was from. I can't believe Rick has sent me a letter after all these years, she thought as she opened the letter. As she read, she realized that this was no ordinary letter; it was a call for help. Her brother wanted her to come see him in London. She sighed and thought. It would be nice to see Rick again and find out what he has be doing. Guess I'm heading to London.

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Callista arrived in London three days later. As she stepped onto the sidewalk, she looked at the address on the envelope. Sounds like it is in the suburbs, she thought as she hailed a taxi. As the taxi headed toward Rick's house, Callista mused over her brother. Rick was almost like her, an adventurer. Except he enjoyed going after the treasure while she went for historical purposes. She was a tomb raider and a guide. She enjoyed the thrills of her job.

The cab stopped and Callista got out. She looked at the house before her. It's huge. Who did Rick con this out of? she thought as she headed to the door. She was about to knock on the door but noticed that it was open. Callista had a strange feeling that something was not right. She entered quietly and went to the parlor. She peered in to see Rick, two men, a woman, and a boy surrounded by a group of men. She recognized their clothing- they were members of the cult of Sekhmet.

"Where is it?" one asked.

"Where's what?" replied Rick.

"The Book of the Dead," answered another. Callista's eyes went wide. The Book of the Dead? Why would Rick have the Book of the Dead? She didn't get any farther than that.

"Who are you?" said a voice from behind her. Callista spun around and knocked him out. Then she turned back to the room and noticed more men coming towards her. "Can we talk about this?" she asked. The men attacked but Callista easily took them down. She noticed a sword rack near her and took two swords out. She smiled; she was an expert swordsman. The men stood in shock as she easily blocked them. Their leader called for a retreat. Before Callista could react, they were gone. Nice, she thought as she looked around.

"What took you so long?" said an angry voice. Callista turned and found herself face to face with her brother.

"What do you mean? I haven't seen you in years and that is all you can say to me?" she said back. They both glared at each other, then they laughed and hugged each other.

"It's good to see you, Calli. How have you been?" Rick asked.

"Okay. I should ask you the same thing. What's with the house?" Callista answered.

"Um, Rick, who is this?" asked the woman.

"Oh. Calli, let me introduce my wife Evy, my son Alex, Evy's brother Jonathan Carnahan, and Ardeth Bay."

"A Medjai?" Callista asked as she looked at Ardeth's clothing.

"Yes," Ardeth answered.

"And everyone, this is my baby sister Callista," Rick continued.

"Your sister? You never said that you had a sister," said a shocked Evy.

"And I never figured Rick as being the marrying type," said Callista.

"Well, can't have everything," said Rick.

"You mean that I have an aunt?" asked Alex.

"It looks like it," Callista said. Everyone found seats in the parlor and began to relax. They sat in silence until Callista asked, "Why is the cult of Sekhmet trying to kill you? And why do they think that you have the Book of the Dead?"

"It's a long story," replied Rick, "which is why I need your help."