#probably...

Tim nearly choked on his ramen, because the day Damian doesn't attempt to murder him - however doubtfully accidental this incident might be - is the day Darkseid decides to be friends with the Justice League. "Fucking knock," Tim coughed out. "And get out. No one invited you in."

"Put better traps if you don't want me here," said Damian, dropping from the ceiling where he'd crawled in on wall-clamps.

"This is my apartment," said Tim. "It's called courtesy."

Damian sniffed. He padded around to Tim's desk and frowns at his cases, then said, with no further lead up, "I need your assistance."

"No," said Tim.

"You did not even listen to my request."

"Don't need to," said Tim. "Answer's still no. Door is that way. Bye."

"Father says mutually assisting each other is beneficial," said Damian.

"Father," said Tim sarcastically, "blamed me for you exploding a glitter bomb in the batcave two weeks ago."

"That is your fault for not being able to provide evidence to the contrary in an appropriately efficient manner," said Damian. He squinted down at Tim. "And he apologized. Eventually."

"I would not have glittered the batcomputer," said Tim. "Do you know how much of a pain in the ass it is to backup those servers? No, because you don't like tech work, you just profit off it."

"Blaming me for Father's mistake," said Damian, "Most mature of you. But we must put our differences aside. I have selected a new family member and I need you to dismantle a government organization."

That drew Tim up short. He blinked down at his ramen as though it might explain Damian's words to him, but the ramen remained disappointingly uninformative. "Repeat that," said Tim, gesturing with his chopsticks. "Slower, and with more detail."

Damian pulled out his phone and sent him an email. Silence surrounded them in the brief moment it took Tim to set aside his chopsticks and open the email. The subject line was titled 'New Baby Brother', which birthed all sorts of horrifying nightmares of Damian Part 2: Demon Child Boogaloo. The teen in the inserted picture, however, was reassuringly not in possession of Damian's bone structure.

He did have black hair and blue eyes. "Who am I looking at?" asked Tim.

"Daniel Fenton," said Damian. "He is fourteen years old, enjoys puns, and has recently awakened 'ghost powers' that allow him to transform into the vigilante Phantom to fight other ghosts."

"Is he also an orphan with a tragic backstory?"

"No," said Damian, and Tim relaxed. "But that will not be an issue. We can share custody if they cannot be removed from the picture."

"Jesus H, kid."

"I am joking, of course," said Damian blandly. "Murder is wrong."

"Ha ha," said Tim. "If he has parents already he's not joining our menagerie."

"He will," said Damian, with a smug upwards tilt of his lips. "He and I have a deal."

"So you're coercing him in addition to stalking him. Anything else you want to share with the class?"

Damian considered this query with a serious frown, which was how Tim knew this was not a flight of fancy or a very early midlife crisis (although with their lifestyle and Damian already having died before...).

"He has," said Damian after a moment, "a rogue that calls himself 'The Master of all Technology' and is a technopath." This was clearly meant to be of interest to Tim, and not to be a stereotype, but it kind of was.

"Great." Tim turned his attention back to the email the demon child sent him. He scanned through it quickly. There was apparently a secret and evil government organization dedicated to the investigation and extermination of 'ghosts' and other paranormal creatures in the world. Their latest efforts were focused on the town of Amity Park, Illinois, which was 'infested with ectoplasmic pests'. Their words, not Damian's. (It was specified in the email.)

"Okay," Tim drummed his fingers against his desk. "Before I help you defeat this secret evil government organization so that," he opened the email attachment with a contract on it and squinted at the legalese, "this poor newbie teen you've harassed into signing this joins the family in exchange."

"I did not harass him," Damian huffed. "It was a gentleman's agreement."

"Does he know that?"

"I am not a politician, Drake. I thoroughly explained the terms and legalities before presenting any contract. Now ask your question."

"Why are you doing this?"

"Because," said Damian, tone implying 'you are stupid and haven't noticed something obvious, idiot'. "Father has begun saying he misses the noise around the manor and looking wistfully at old pictures."

"We still live there though?" said Tim. Damian looked flatly at him. "Sometimes."

"If you lived there frequently enough," said Damian, "you would already know Father is having...empty nest syndrome." Damian sounded disgusted. "I refuse to tolerate whatever inadequate and incompetent child he will find."

"So instead you found an incompetent and inadequate child for him?"

"Don't be stupid, Drake," said Damian. "I would not have chosen someone inadequate. Daniel is merely lacking formal training. Father can rectify this. It will keep him occupied for at least the next two to four years, which gives me enough time to find another black-haired, blue-eyed, tolerable child I approve of to be his successor and my second younger sibling." Damian paused. "Or until one of you procreates and gives him a grandchild."

"You're really serious about this," Tim whispered in horrified awe.

"I am serious about everything I do," said Damian. "Now, you will help me defeat this evil government organization so that our new sibling joins us."