HEY HEY HEY! This is my Third fanfic. This story is NOT the sequel of L.O.S Adventurer( My last story). This story is about mystery and crime. All the character are humanized. Enjoy.

Chapter 1: Prologue

The land of Ooo is full with crime. The dedicated police risk their live to do their job. They'll do anything for justice. One of them is Detective Finn. He's family is a millionaire , but he sign for the police because he want to clean the streets from his 18th birthday, he celebrate it by arresting 5 drug dealer and destroy a total 5 million dollars of drugs. He was an orphan when he was a baby and adopted by General Joshua MacArthur. When he was adopted, he has a new brother name Jake MacArthur, which already passed away. He also has two woman's friend. Their named is Princess Bonnibel Bubblegum, who's the daughter of king Gumball of Candy kingdom(the kingdom name Candy kingdom because the main commodity of the kingdom is candy). She's a doctor and a celebrity and the hottest woman in the land of Ooo. the other one is Marceline Aberdeen from the Aberdeen Mafia family, she's the last known Aberdeen in the land of Ooo and she change her family business from mafia to charity business and she's also a detective. He's achievement for life is become a hero.

Now, he's eighteen and a detective in narcotic division. He's the policemen that department ever had. He's partnered with Marceline. Right now, They in a OMW police-issue car and stay in the car for 4 hours and wait in front a warehouse until a drug delivery shipment. "Man, this gonna take forever." say Marceline to Finn while putting her leg in the dashboard of the car. "Shhh. I'm concentrating watching them." reply Finn while using a binocular. Suddenly, a van is appear and the drug dealer comes out from the van and open what is carrying. It's full of mariyuana and the payment is by a suitcase full of money. "This is Finn, target sighted, call the FCDF(First Counter-danger Forces). I'm going in." said Finn to police operator. "Roger that detective. FCDF en route to your position ETA 25 minutes." replied the operator to Finn. "OK. Marceline, stay here! I'm gonna go in. You guard the outside." said Finn to Marceline while loading his SS-2. "Roger Finn." replied Marceline. Finn comes out from the car and identified himself. The dealer shot at Finn and He hid behind a box. Finn comes out from his hiding and killed the people that shooting at him. He walked to the warehouse and shooted everyone that tried to kill him. 25 minutes later, Finn hasn't comes out from the building and FCDF is arrived. "Hello detective. Captain James Cartwright at your service!" said the Captain to Marceline. "Alright. My partner is inside he hasn't comeback since he went in." said Marceline the situation to the Captain. "Roger. Cmon let's move. The rest of you make a perimeter." said Captain and took 5 of his men. They entered the building. 3 minutes later, massive fire battle is herd inside the building and suddenly the warehouse is exploded and the some of the ceiling in the warehouse is broke and make the warehouse's rooftop crumbling down. All the FCDF that entered the building is KIA, including Captain James Cartwright. Marceline is crying and sobbing a lot when one of the FCDF is gave her Finn's necklace. Few of the dead body is unable to identified because is heavily destroyed and some of dead body is burned to ashes. The next day, all the police department attended the funeral for the FCDF that KIA in the explosion and the most dedicated cop in the history, Detective Finn MacArthur. All of Finn's friend attended the funeral. It was a great loss for everyone and his brother Jake. But, his friends and Jake are moved on and continue their own live.