The door crashed open, shaking the walls. Robin burst through panting, fists twitching by his sides. The other Titans followed him in, arranging themselves in attack formation, readying starbolts and sonic cannons.

Slade looked up in surprise. He was standing next to a long, mahogany table, laying out glinting silver cutlery. However, he dropped the fork he was holding and straightened up, snatching the red Santa hat from his head.

"Titans," he said in the most menacing voice he could muster. "I see you've found my lair."

"How did we find his lair?" Beast Boy hissed to Cyborg.

Cyborg shrugged.

"It's over, Slade. We know you're behind these attacks," Robin snapped, marching forward. "We've come to take you down before someone gets hurt."

For a while, Slade only stared at them, blinking. "It seems you've let your obsession get the better of you again, Robin," he finally said.

Cyborg lowered his cannon. "You're not behind the attacks?"

"He's lying!" Robin yelled, smashing his staff against the ground. "He's behind them. I know it. I feel it!"

"Robin. When have I ever not owned up to my criminal work?" Slade asked patiently. "I'm afraid, on this occasion, you have the wrong criminal mastermind. Now, I'd advise you leave before I am forced to engage you in combat."

"Do your wors-" Robin began but Starfire hastily grabbed him around the shoulders and drew him backwards.

"Perhaps, on this occasion, we should refrain from the attacking."

"But, Star-"

"Robin," said Raven sharply. "I don't think he's been orchestrating these attacks."

"Yeah, he's been too busy decorating," Beast Boy snickered, nodding at the cardboard boxes of baubles, and the tinsel messily taped along the back of each chair. "Who's coming for dinner? Your girlfriend? And why are you doing it at three in the morning?"

Slade glowered and pointed to the door. "Leave."

Squeaking, Beast Boy retreated, followed by Raven, Cyborg, and Starfire – who had to drag Robin along.

After a few seconds, Slade sighed, body drooping, and look to the mantelpiece where there sat a framed photograph of Jericho. "Maybe… this year…"

Back in the car, the Titans were trying to work out what the next crime was going to be.

"Ten lords a-leaping," Beast Boy murmured, tapping his chin. "Are there any lords in Jump City?"

"No, at least there's no one with 'lord' as their official title," Robin replied. "I think whoever's behind this is going to have to be a little creative with this."

"What about the leaping part?" Cyborg asked. As much as he wanted to head back to Titans tower, he knew it was pointless and was instead driving aimlessly around the city.

The car phone began ringing and Beast Boy chuckled to himself. "Maybe someone's robbed a trampoline store?"

"Is this the Teen Titans?" yelped a frantic voice the moment Robin answered the call. "This is Terry of Terry's Terrific Tower of Trampolines. I've been robbed!"

"Robbed?" Cyborg repeated, glancing dumbfounded at Beast Boy.

"And one of my vans has been hijacked!"

Robin frowned. "We'll keep a look out for it."

"Thank you, Titans!"

A click signalled the end of the call. "Well, that's the leaping part solved," Raven said. "Now for the lords."

Just then, the car phone rang again, eliciting more confused looks exchanged by the group. Robin clicked a button to answer.

"Titans, it's mayor O'Leary. You have to come and help us. We're at the town hall."

"What's happened?" Robin asked, but the line descended into muffled shouts and grunts, then it went dead. Robin turned gravely to Cyborg. "Town hall."

Fortunately, they were only a few minutes away. It was a grand, old building in the centre of Jump City. Cream pillars flanked the wide, dark wood doors, and rounded windows lined the front walls. A splattering of trees hid the car park around the side, but through the leaves was visible a large, blue truck.

A truck from Terry's Terrific Tower of Trampolines.

They parked messily next to one of the pillars and hurtled into the building – again, the doors were unlocked. The ground floor was quiet and dark, but there were shrieks sounding from up the grand staircase next to the main reception.

They ran up and followed the screams down thickly carpeted corridors until they came to a set of ornate doors. Golden doorknobs gleamed beneath finely carved wooden panels. The ballroom, where the mayor and other socialites often held charity events and parties.

Robin yanked on the handle and pulled the door open.

Every inch of the floor was covered in trampolines. Trampolines of every size; huge ones in the centre, tiny ones filling the corners, long ones stretched across the walls. Pushed snug around every pillar, slotted into every alcove. Nowhere was safe.

The shrieking was now obvious as on the trampolines were ten figures. Men, dressed in their pyjamas and dressing gowns, were bouncing helplessly across the elastic surfaces, clawing for something to grab onto for stability or to anchor themselves to, but there was nothing. No gaps in between the trampolines to wedge their fingers into, no grips on the walls or ceiling. One man had tried to grab a pillar as he sprung past, but the force of the bounce proved too strong and he merely smacked his nose against the wood then fell away howling.

"I didn't realise the next attack would be so literal," Raven remarked, staring at the bizarre scene with her usual deadpan expression.

Robin climbed onto the first trampoline, keeping his feet firmly planted on the safe edge, and glanced around for signs of the villain.

Beast Boy suddenly gasped and pointed to the far right corner of the ceiling, where one of the pillars arced into the wall with fancy scroll work. There, between wood and plaster, a figure crouched; it appeared to be laughing.

Starfire flew up to get a closer look, avoiding the flailing socialites. "It is Killer Moth!" she called. "And- AHHH!"

Suddenly, from out of nowhere, several large moths streamed into the room, like furry, white cannon balls crashing into whoever they could reach, including Starfire. She had to perform a series of frantic somersaults to avoid them as she tried to find her way back to the team.

"Cowards," Killer Moth crowed, surging towards them with his powerful wings, his moths parting before him. "Come up and fight me if you want to save these undeserving scumbags."

One of the men tried to argue back, but instead crashed into someone else. Both collapsed groaning and clutching their heads.

Robin clenched his jaw; they didn't have much of a choice. "Titans, go!" he cried, launching himself onto the trampoline.

There were several things to think about at once. One, take down as many moths as possible. Two, tried to get close to Killer Moth and bring him down. Three, don't hurt the civilians. However, these proved rather difficult.

The moths, and Killer moths, had the advantage over Cyborg and Robin. Without the ability to fly, the two were forced to use trampolines to get into the air. However, with a bunch of random people also leaping around, they would sometimes land or jump at the wrong time and end up in the wrong direction.

Or, as happened more times than Robin cared to think about, his feet would catch the elastic at just the wrong time and his legs would buckle beneath him. And once off his feet, it was difficult to get back up again.

Beast Boy fared better. He morphed into a large eagle and swooped around the hall, catching moths in his talons and hurling them away, trying to knock others out of the air. He had cleared a good chunk of them when Killer Moth caught him with his plasma whip and sent him spiralling into the wall.

Raven was having more difficulty than usual. With nothing to use her telekinetic powers on, she couldn't use long-range attacks. Fortunately, the moths weren't exactly clever, and were easily batted aside by a good kick.

Killer Moth wasn't as empty-headed, and his plasma whip was dangerous. She managed to dodge it for a while, ducking whenever he raised it and aiming her attacks at his back. But her success couldn't last; he managed to wrap the end of the whip around her ankle and, with a cry of pain, Raven tumbled to the trampoline hell below.

Soon, Starfire was the only one not bouncing uselessly across the floor.

"The whip! Get the whip!" Robin yelled, trying and failing again to right himself.

She nodded, resolute, and rose to face Killer Moth. He was expecting her, fluttering in the centre of the room with his arms folded. He opened his mouth to make some sort of snarky comment, but was interrupted by a barrage of starbolts and green explosions.

Killer Moth yelped and promptly dropped the whip. But the barrage didn't stop. If anything it grew heavier until nothing was visible but green smoke and searing light. Killer Moth rocketed away, but the attack followed him. He angled up the ceiling then went backwards, like a large loop-de-loop, and tried to come up behind her.

Unfortunately for Starfire, the smoke from her vicious attack had given him ample cover. She paused, waiting for the air to clear, starbolts at the ready. But when the smoke dissipated, he had gone.

Beast Boy, recovering from his daze, managed to control his jumps enough to shout, "Star, behind you!"

It was a second too late. Large hands grabbed her wrists and pulled them against her back, rendering them useless.

"You're a pesky fly, aren't you?" Killer Moth sneered in her ear.

"I am not a fly," Starfire growled, turning her head to fix him with a glare. "Flies cannot sting!"

With a flash, green energy shot from her eyes and exploded in Killer Moth's face. He let go and fell for a few moments, catching himself just in time for Raven to swoop in and use his own plasma whip. It curled around his arm tight enough to swing him into the wall with a flick of the wrist.

Starfire swooped down to grab Killer Moth under the arms, and Raven rearranged the whip so it was wrapped around his body, sending constant waves of pain to stop him from struggling. Together, the two girls got him outside the town hall, where Raven tore down some of the drainpipes from the town hall to tie up Killer Moth.

With the criminal tightly secured, they returned to the trampoline room to help their teammates and the ten socialites back to solid ground.

None of them stayed around long. After a quick phone call to the police to alert them of Killer Moths' wrong-doing and capture - "You mean we've got to get statements from ten upper-class twits then move how many trampolines!?" - the Titans bundled back into the car and promptly drove away.

"I never want to go on another trampoline in my life," Beast Boy muttered, nursing a bruise on his leg. "Ever."

"This was the ridiculous, correct?" said Starfire. "What is the next lyric?"

"Can't be any more crazy than this one, right?" Cyborg asked. "Right!?"

"Pipers piping," Robin grunted, clearly still embarrassed that he had been next to useless in the fight. "A music shop?"

Beast Boy groaned and pressed his hands into his face. "Please tell me it won't be bagpipes!"

"It won't be bagpipes," Raven said. Beast Boy perked up until she added, "Unless it is."

"Aww…"

"The real question," Robin interrupted, glaring at the road in front of them, "is who's behind this if it isn't Slade?"

Snowflakes swirled past the window, illuminated by the glow of the headlamps, then disappeared into the night.

This chapter's title is an absolutely hilarious play on the word 'jumper' being both an article of clothing at a noun meaning someone who jumps.

Sorry, I couldn't think of a good quote for this one…