Disclaimer: The usual so you don't sue me…I don't own Teen Titans and probably never will (will check assets in a few years time!). It is owned by DC Comics and Cartoon Network (wonder how many billions TT is worth?)

Author's Note: Hi everybody! I'm back again…this time with a brand new fic which will hopefully be a success…I know I'm a little overdue with this fic since Halloween was over a looong time ago but I've only recently had time to type it out so pleeeaaase forgive me! Here's the full summary: -

Summary: As the night of witches, ghouls and ghosts arrives, even superheroes like the Teen Titans like to celebrate the joyous (spooky!) occasion of All Hallow's Eve or more commonly known as Halloween! Robin and Starfire decide to investigate a haunted house; Cyborg and Bumblebee check out a scary movie, Beast Boy manages to drag Raven to go trick-or-treating and Terra, Speedy and Aqualad set out to booby-trap a few selected houses of the Justice League Unlimited! Is it going to be a fun filled night of trick, treat or trouble? Teen Titans/Justice League crossover.

Chapter 1

Dressing Up

"Hey dudes! Do you know what tomorrow night is?" asked Beast Boy eagerly, waving the calendar in front of his fellow Titans West teammates. Robin looked up from his book about criminology. "Spooky Sunday isn't it?" he said, shutting the book. "Freaky Friday more like it," replied Terra. "Today's Thursday!" Cyborg grinned happily. "Oh yeah, Halloween is coming UP!" he shouted. Starfire as usual looked confused. "Ha-llo-ween?" she asked, spelling out the word slowly. "Is this some manner of greeting?" she continued. Robin shook his head.

"It's this really cool festival when everybody dresses up as anything they want particularly scary things and go from house to house asking for candy," he explained. "Tradition says that if the owner of the house gives candy, he'll have good luck but if he doesn't, he'll be cursed. It's called trick or treating," he said. Starfire nodded. "I too wish to participate in the glorious dressing of scary beings then!" she said eagerly. "Getting the delicious, sweet candy is of a glorious prospect!"

Raven was still reading her book. Halloween was actually her favourite time of the year when all things scary were present. Her kind of theme. Terra stood up, grinning. "Raven doesn't need a costume for Halloween," she joked. "She dresses all year round for it!" Raven shot her a dirty look.

"Why don't we go to the costume rental agency and decide what costumes to wear?" suggested BB. "We're kinda late already, all the nice ones have probably been taken …" he groaned. The other Titans agreed fervently. "Great! Why don't we call the Titans East and tell them to meet us there?" suggested Robin as well. "Speedy always said he wanted to be a werewolf when we were younger!"

At the Titan's East Tower…

"Boys!" shouted Bee. "Hurry up, we're already late meeting the others!" Aqualad and Speedy hurried down the stairs. Bee turned to the Spanish twins. "Sure you don't want to follow?" she asked in Spanish. Mas and Menos shook their heads and zoomed off to the Game Station. The three other Titans shut the door and set off to the Jump City Costume Rental Agency.

At the rental agency…

"Cool!" exclaimed Beast Boy, as he examined a Dracula costume complete with fangs. "This is so great!" "Agreed," said Starfire enthusiastically as she twirled around in a shiny ball gown, a tiara perched on top of her red hair. Robin lunged at Aqualad, wearing a costume similar to the monster in Wicked Scary. The Atlantean teenager was sporting an old time shiny armor worn by knights, holding a lance and sword. "Step lively gentlemen!" he roared, laughing at Speedy, who was wearing a black patch over one of his eyes. He was dressed as the pirate Blackbeard, with a wooden leg and a parrot.

Raven looked around, taking in the huge array of costumes on display. Maybe she should dress up as a queen or something. Terra dressed up as the Sugar Plum Fairy while Bee pretended to be a witch. "Man, they have just about everything," said Cyborg, emerging from the changing rooms wearing a black cape and a horned cowl. Over his metallic chest he wore a grey shirt with the Bat insignia on it. "This costume even comes with a utility belt and batarangs!"(A/N Sounds familiar? )) Bee laughed. "Wait till Robin sees you!" He grumbled. "It was the only costume that could fit me!"

After selecting what they wanted, the Titans paid for their costumes and promised to meet at the Titans West Tower the next night at 5 to decide what to do.

Author's Note: Stick around people, this is only chapter 1! The fun starts in chapter 2! I can't wait to see which unlucky Justice League member is going to get gassed don't you…You can send me suggestions of who you want to be tricked and I will consider them! Drop me a review and see you in the next chapter of 'Trick, treat or trouble!'