Dlbn: Hello, everyone! And welcome to my first crossover fic!

Nbld: It's a rather unusual grouping, probably because of the apparent lack of "Demon Diary" fans out there, but it is happening.

Disclaimer: I do NOT own Black Butler. That belongs to Yana Toboso. I make NO money off of using this category.

Disclaimer 2: I do NOT own Demon Diary. That belongs to Kara. I make NO money off of using this category.

000

The Phantomhive manor was bustling with the sounds of noisy staff wreaking havoc as per usual. Young Earl Ciel Phantomhive sat at his desk; his head resting on his hand in the form of a fist that was propped up on his oak desktop with his elbow. Bored, he skimmed through documents with his one blue eye. The other was hidden behind a black eye patch to hide the purple Faustian contract seal it contained. The door to his office opened and a black clad butler with reddish eyes and black hair cut to frame his face entered.

"Young master, it's time for your afternoon tea." The butler greeted the young boy at the desk.

Ciel sighed and put down the papers he was holding. "Very well then." He replied. "What is it this afternoon?"

"This afternoon, we have a rich golden monkey black tea." Sebastian informed. "The cocoa undertones bring out the richness of the flavor and contrast nicely with the slice of vanilla bean cheesecake I have prepared." Sebastian set an expensive tea cup and matching plate in front of his master, careful to avoid setting it on the numerous papers that were splayed about.

"Whatever, Sebastian. I could really care less right about now." Ciel picked up the cup and took a sip, setting his papers down.

"Is something troubling you?" Sebastian wondered. "You've been very brooding as of late."

"I'm growing rather tired of this life." Ciel informed his butler. "It's the same day in and day out. I need a little excitement."

"Jack the Ripper, Madam Red, the circus…they weren't enough excitement for you, my Lord?" Sebastian smirked. "Hardly a normal life for a boy your age."

Ciel glared at him. "I don't pay you to contradict everything I say."

Sebastian chuckled. "My apologies, Lord, but you do not pay me."

Ciel rolled his eye. "Whatever, Sebastian. I've grown tired with your stupidity as well."

"Stupidity?" Sebastian straightened and put a gloved hand over his heart. "Young Master, I'm afraid I am being completely educated about this. You have been through so much, I do not see what could be ordinary or boring about this life you live."

"Aside from the few misadventures we manage to have when the Queen has me on some sort of mission, everything is so mundane. Wake up, eat, work, deal with Lizzie, afternoon tea, lessons, more work, dinner, more work, rest, bed, and then wake up the next day to repeat it all in a never ending cycle." He sighed. "Perhaps, for a Demon, this is comforting to do things by routine. Unfortunately for us mortals, we grow restless when forced to do the same thing over and over again."

Sebastian nodded. "Understood, my Lord. It has been a long time since the queen sent us on a mission."

"Sent me on a mission, Sebastian." Ciel took another long sip of his tea. "Make no mistake about it, you go with me and do the work, but I am the one the Queen addresses her letters to."

"Letters such as this one?" Sebastian pulled an envelope from his breast pocket with two fingers and handed it to his master. "This came for you an hour ago."

"What?! Why didn't you tell me!?" Ciel wondered, taking the envelope. The Queen's seal was stamped into the back on red wax to hold the envelope shut. "Ugh, Sebastian…this could have been important."

"There was no rush to deliver it, I assure you." Sebastian corrected. "Delivering it with your tea was a simple decision, considering you seemed so engrossed in your work."

"I'm bored. Anyone could tell merely from the expression on my face…but then again, I suppose that you're not exactly 'anyone'."

Sebastian chuckled. "No, my Lord. I am not 'anyone'. I am simply one hell…"

"Yes, yes, 'one hell of a butler'. Your pun grows less and less amusing each day."

"If it were a pun, I would say I was a devil of a butler, My Lord."

Ciel glared. "Shut up."

"Yes…my Lord."

Ciel broke the seal with his thumb, the one bearing his family ring, and opened the envelope.

My Dearest Watchdog,

Earl Phantomhive, it would appear as though there have been numerous cases of people disappearing lately in the London Area. In addition, other, queer people are appearing in their places. They are garbed in the most unusual dress and appear disoriented and confused.

All things considered, my Watchdog is the best candidate for the job.

You will work alongside the Spider to catch the culprit and bring them to justice.

I am counting on you to do this job. No one else is suited. The Spider is just for backup should things go wrong; however highly unlikely it is that things will. I have confidence in your skills, but I cannot afford to be naïve about this situation.

Much love,

Queen Victoria

Ciel groaned as he read the letter in its entirety.

"My Lord?" Sebastian wondered.

"The queen is sending us on a mission with the Spider as backup." Ciel groaned. "I'm really not in the mood to deal with Earl Trancy today."

"I thought you were looking for excitement, my Lord." Sebastian smirked. "The young Trancy boy is…always entertaining."

"Well, here's to hoping we won't have to deal with him as a source of 'entertainment'. We can avoid them." Ciel tapped the papers on his desk together before setting them down and grabbing the plate with a slice of cake on it. He plucked off the strawberry on top and ate that first.

"Forgive me, my Lord, but doesn't the Queen say to work with the Spider?" Sebastian asked. "I am afraid that avoiding them would not be in our best interests, as it goes against the Queen's wishes. It doesn't look good for a Watchdog to disobey his master."

"Yes, but…" Ciel sighed and chopped off a piece of cake with his fork. There was no arguing with his demon butler's logic. "Fine. We will deal with them only when necessary. I do not want to make it a habit of rendezvousing with the Earl of Trancy."

"Understood." Sebastian nodded. "I cannot say that I am happy to deal with that Claude demon again, but going against the Queen's orders is ill advised."

Ciel nodded. "You've made your point." He informed. "Ready a carriage. We shall leave as soon as I finish my meal."

"As you wish, my Lord." Sebastian bowed slightly before turning on his heel, tailcoat drifting in the wind. He exited Ciel's chambers, shutting the door quietly behind him.

Ciel sighed as he finished up the rest of his cake. People disappearing and other people appearing? Sounded like the work of a demon or two to him. Or, perhaps, the work of a Reaper. Only one way to find out…

000

A young boy with spiky black hair raced through a valley in between towering mountains towards a castle placed in the middle of the valley. The large castle with huge, ivory towers loomed in the distance; a speckle of black and white against green grass and grey mountainsides. The cast iron gate at the end of a cobblestone pathway gave way into a large cobblestone courtyard that surrounded the castle. The boy ran and jumped over the gate before going to the front door and pounding his fist on it.

"R-Raenef!" He called. "Eclipse! Erutis! Demon Lord Fruity Pants! Anyone here?!"

The large wooden door swung open and a tall male with ruby eyes and long, black hair stood on the other side. He wore a grey-black kimono style outfit and black sandals that wrapped a little ways up his ankle and looped once over his big toe on either foot. He tapped a foot impatiently, arms crossed. A single piercing sat in his left earlobe; a moon attached to the stud in his ear by a chain.

"What are you yelling about, Chris? It's early morning." He grunted.

"I know that." Chris huffed. "I need to talk to you guys!" He pushed his way past the older, annoyed male, and entered the castle.

The man groaned and shut the front door. "Don't yell." He ordered. "I'll awaken Master Raenef myself."

"And I'll get Erutis!"

"Yes…it would be best if you were the one to wake her."

Chris ran off to leave the older male alone in the foyer. The male sighed and made his way down the dimly lit hallway to a room with a shut door. He knocked lightly on the door.

"Master Raenef?" He wondered softly. "Are you awake?"

Hearing nothing in response, he pushed the door open and entered the chambers. Inside there was a teenager wrapped up in sheets and blankets on a bed that was too big for the youngster. Eclipse walked over and ran his fingers through unkempt, soft, blonde hair.

"Master Raenef?" He whispered. "Wake up, please."

The teen groaned. "Five more minutes, Eclipse…" His voice was strangely low for such a feminine figure.

'Eclipse' sighed. "Lord, it's time to wake up." He said, a little more forcefully.

Raenef groaned before forcing himself to sit up, rubbing his sleep filled eyes. "What time is it?"

"Morning, Lord." Eclipse replied, brushing stray strands of blonde from the boy's face. "It's not even close to noon…"

"Why are you waking me up so early?" Raenef groaned. "We don't have a meeting today that I forgot about, do we? Oh, why am I so forgetful?"

"No, my Lord, it's not that." Eclipse chuckled. "That foolish Cleric ran into the castle screaming his head off. I'm surprised he didn't awaken you as well."

Raenef shook his head. "I'm a heavy sleeper."

Eclipse chuckled. "I see that. Come, let's see what he…"

A loud cry rang through the castle, making Raenef jump and Eclipse chuckle.

"W-What was that?" Raenef wondered. "It wasn't…wasn't a Crusader, was it?"

"I believe that was Chris." Eclipse chuckled. "He went to awaken Erutis."

"Not a good idea…"

"I couldn't stop him."

"You mean you didn't want to."

Eclipse smiled. "You know me too well, Master Raenef."

Raenef laughed, a light, airy sound. "Yeah, I guess. Come on, let's go. I want to eat." Raenef pictured the kitchen in his mind. "Go!"

He vanished as soon as the world left his mouth. Eclipse sighed and imagined the kitchen as well, somehow knowing it was where his little Lord was headed.

"Go."

He vanished as well, leaving the room empty and silent once again.