This is a collab that Monstarzgirl and I worked on a little while ago(She and I each took turns writing parts of the story) which is a continuation of her own Powerpuff Girls series starring her OC, Rebecca Utonium, the professor's niece. Please enjoy!(BTW Monstarzgirl, thank you very much for working on this story with me. I've always loved your stories and had a lot of fun writing this story with you; I look forward to us writing more in the future.) :)

Narrator: "The city of Townsville! A city of mystery, and intrigue, and, well...many more wonderful things!"

A robin perched in a tree just outside the Utonium Chateau sings a merry song. Inside the house, the Powerpuff Girls are happily watching a Sherlock Holmes movie while eating Lucky Captain Rabbit King cereal. "Boy, that Sherlock sure is cool." Buttercup notes.

"He always knows what to do in every situation." Blossom adds.

"Gee," Bubbles notes blissfully. "It would be fun to solve a mystery like him..."

Just then, the girls' cousin Rebecca Utonium hurries into the room with her little dog Roxi following closely behind. "Girls! Girls!" she exclaims excitedly. "We won!" Upon hearing this, the girls turn toward her with intrigue. "Ooh, what did we win?" replies an equally excited Bubbles.

"Well, I recently entered a radio contest to win tickets to the Sherlock Holmes Unsolved Mystery game," Rebecca replies. "Those who enter can try their hand at solving a mystery the great Sherlock Holmes had left unsolved, with a fabulous prize in store. We've won thirteen tickets, so there are enough for Mojo, April, Deanna, and the Gang Green Gang to come too; we'll be taking a plane to London this evening."

Upon hearing this, the Powerpuffs' eyes grow wide. "Ohmigosh, we get to solve a mystery!" Blossom exclaims.

"We're gonna be detectives!" Bubbles squeals.

"This so rocks!" Buttercup exclaims as she zings up and tosses her arms in the air.

Rebecca laughs kindly at their spunk. "Well say, I don't mean to be rude, but I need to go tell Uncle John, Mojo, and the others about the contest," She and Roxi then begin making their way toward the door. "Goodbye, girls, we love you! Please take care!" Roxi gives a small bark goodbye.

"'Bye, Becca! 'Bye, Roxi! We love you! Please take care!" the Powerpuffs call, waving politely as they go.

After informing the professor of the contest, Rebecca then hops into her red Mustang, with Roxi seated next to her, and drives off toward Townsville Park. Upon reaching Mojo Jojo's volcano top observatory, the two traipse up to the front door. Rebecca gently knocks, "Shave and a haircut" upon which a knock of, "Two bits" comes in reply. Rebecca stifles a small laugh as her boyfriend greets her at the door.

"Hello, my dear," Mojo politely addresses her as the two share a welcoming kiss. "How are you on this fine day?"

"Very well, my sweet," she replies lovingly. "I've come to tell you that you're invited to join my friends and family in the Sherlock Holmes Unsolved Mystery contest."

Mojo asks, "We're going to London?"

Rebecca nods, "You've guessed right. There's 13 tickets for us, so that leaves me and you, Deanna, April, the Gang Green Gang, Uncle John, and the Girls." With that, another Pomeranian puppy walked near Mojo's feet and barked a friendly hello to Roxi. Mojo pets Foxy and says, "I wonder if we can manage to squeeze in the puppies to come along with us."

"I'm sure we can." Rebecca says with a smile as the two little puppy sisters give each other welcoming licks. The four then hop into Rebecca's Mustang and drive off to find the others.

Once they pulled up to April's house, Rebecca rang the doorbell and saw April near the door with Deanna. April smiled, "Hey, Becca, whatcha doing here?" Deanna waves to Mojo and the puppies, "Hi, Mojo! Hi, babies!"

Mojo waved back as the puppies barked hello to her, then Rebecca said, "We came here to tell you that you're invited to join my family and Mojo in the Sherlock Holmes Unsolved Mystery contest. We're going to London!"

Deanna said, "London? I've always wanted to go there! I'd love to see Portobello Road, Saint Paul's Cathedral, and Big Ben!"

April said, "That's neat! I'd love to see Buckingham Palace and the famous Baker Street! When do we leave?" Rebecca peeks at one of the tickets. "Exactly an hour and thirty minutes. That should be plenty of time for us to get ready and make it to the airport on time."

"Oh, perfect," April replies politely. "We'll go tell the gang and meet you at the airport."

"Thanks, guys." Rebecca replies politely as she and Mojo then return home.