1 - 20 of 74 Works in Cassandra Cain and Tim Drake are Siblings
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Gaslighting Your Parents Into Thinking You Have A Sibling by VoidWalker81
Fandoms: Batman - All Media Types
23 Dec 2025
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I had just read "Hey Look! Free Sibling!" by @S_C_G and randomly thought of an alternate universe where they didn’t climb the fence to Wayne Manor and Tim hacked her a birth certificate and online schooling and gaslit his parents into thinking she was actually his sibling, but she stayed away from them cause when they saw her they’d end up getting super drunk and have screaming matches about indiscretions in Hong-Kong, and they eventually sent her to boarding school for people with special needs because she was mute. Like, she could speak, but she just didn't because whenever she tried talking to them they got mad. (they weren't abusive)
Starts when they walk past Wayne Manor, Chapter 3.Tim pointedly walks past Wayne Manor, refusing to even look. He wished they would see him, help him; wished he could talk to his personal hero, Jason Todd; but it was foolish to even hope. Right now, his sister was more important.
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I'll make it through the winter if it kills me by eggplant_waffles
Fandoms: Batman (Comics), Batgirl (Comics)
21 Dec 2025
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Batman has potentially the most famous rogue's galleries in comics- Joker, Riddler, Two-Face, and so many others... but this story isn't about Batman and his villains- this story is about loveable underdog, Stephanie Brown (don't fact check the loveable part, just trust me) and between her Spoiler days, brief stint as Robin, and her (so far) shockingly successful time as Batgirl, she's developed her own reoccurring villains! Such as gravity, an awkward relationship with the Wayne family, and of course- the consequences of her own actions!
How long can our heroine completely ignore her past and any lasting impacts it may have left on her mental health? If you ask her, she'd say forever! (She's an optimist now.)
Authors Note: Look! I made a real summary; it only took me 29 chapters to do it :)
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And the toughest part (is that we both know what happened to you) by Rinfcv
Fandoms: Batman - All Media Types, Red Robin (Comics)
17 Dec 2025
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Tim Drake is an adult. He has his own suit, his own name, his own place in the world. Everything he ever wanted. But missions no longer fulfill him. Wayne Enterprises keeps him busy, and the Nest feels emptier than ever.
Something inside him knows that if he keeps on this way, he won't be around much longer. And if he's honest with himself, he's not sure that bothers him.
Or, Tim Drake made a mistake, and he doesn't know how to forgive himself. But he has too many siblings and friends to help him.
Series
- Part 2 of A Bat and his Birds
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Inheritance of Shadows by Pistolbag
Fandoms: Batman - All Media Types, Batman (Comics), Batgirl (Comics), Batman: Death in the Family (Movie 2020), Batman and Robin (Comics)
09 Dec 2025
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In Gotham’s grim streets, there’s always a new face: an old ghost in a new skin. But when a young girl, feral and untrained, is discovered in a dark corner of Gotham's underground by Batman and Robin during a mission to stop David Cain, the dynamic of the Bat-Family is forever changed.
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Digression Into Etherialism. by karmacreations2000
Fandoms: DCU, Batman - All Media Types
06 Dec 2025
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Tim Drake is his mothers son. Same creepy hollow church echoed voice. Same dull pale blue eyes. Same white skin. same soft edges. same minds. same same same.
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Tim drake is there sibling, and they relise he's weirder then he lets on, they know, in theory that he would be bound to be weird. he's a bat after all. they don't think he should be this weird though.
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Tim Drakes new family learning to live with there odd brother, and all his creepy reality bending fake perfection. -
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When Tim runs into a rogue magic-user on patrol, the family is left to care for a child version of him while he slowly returns to his normal age as the spell wears off. The close proximity and the chance to see different sides of Tim provide opportunities for reflection and reconciliation (and a lot of cute pictures).
Written for the 2025 Batfam Big Bang
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When Dick, Damian and Alfred prove insufficient in picking up Bruce and Tim's mantle as Gotham's bat-vigilantes, Tim, Cass and Babara pick up the slack and show Gotham that they're the true Robin and Batman heir.
Tim Drake is Robin Week Day 2:
"[Blank] and Robin"|friends| teamworkSeries
- Part 2 of Tim Wayne is Robin Week 2025
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Are you man enough (to take the blame for this)? by cryptidcookies23
Fandoms: Batman - All Media Types, Batman (Comics), Red Robin (Comics)
04 Dec 2025
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Tim misses his best friend. All his friends. His parents. Bruce. Everyone who has left him in the past two years, never to return. Bart is dead. Steph is dead. Kon is dead. Cassie is in a cult. Bruce is dead. Dick is too distracted with Damian to help.
Tim will do anything to feel close to them, to feel loved again. Anything.
Even if it means running away and taking on the world all by myself.
Even if it means killing that part of himself that drives everyone away.
Even if it means that he dies in the process. -
Bat-Bits by Mouse_in_this_house
Fandoms: DCU, DCU (Comics), Batman (Comics), Batman - All Media Types, Red Robin (Comics), Batman and Robin (Comics), Robin (Comics), Red Hood and the Outlaws (Comics), Nightwing (Comics), Young Justice (Comics)
29 Nov 2025
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A collection of random headcanons, ficlets, thoughts, and blurbs directly in the Roost-series.
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- Part 24 of Where Bats and Birds Roost
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Damian Wayne-al Ghul has been out of the loop for three months now. A fault that was no one’s but his own.
Tim elects to change that.OR
Tim and Cassandra are twins, and Damian is their little brother. These are the events following Tim’s escape from the League of Assassins.
Series
- Part 2 of Conversations
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Without anyone speaking in her comms, Cass is surrounded by silence. The trail is the only sign that someone is here, and even knowing that, she finds it hard to believe. There’s no breathing, no footsteps other than her own. The creaking sound she’s learned to associate with Gotham is suspiciously absent, and Cass wonders if her target is a metahuman, or someone who’s been taught to be deathly silent.
But that illusion is quickly shattered.
The emptiness in front of her glitches, for lack of a better word, and then there’s a boy where there used to be thin air. Strained breathing instead of unnatural silence, and a faint, green glow illuminating the darkness.
Cass does not swear, because she does not want to startle the boy, but she wants to.
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whumptober day twenty-seven
prompt: bedside vigilSeries
- Part 19 of whumptober '25
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half of my soul (as the poets say) by Anonymous
Fandoms: DCU, DCU (Comics), Red Hood and the Outlaws (Comics), Red Robin (Comics), Teen Titans - All Media Types, Batman - All Media Types
11 Oct 2025
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In their world, people were connected by the marks on their skin, soulmarks. The different colors had different meanings, from platonic and familial to romantic, but one thing that stood firm between them all was that when a soulmate died, the mark of the survivor turned black, the flesh raised like a scar. Tim had felt six of his soulmates die before he had turned eighteen.
He had never expected that the first of his soulmates would come back from the dead, seeking to harm him for wearing the suit that the other had died in. It was because of this that he never told the other of the connection, even as they started getting along years down the line.
Now, a mission where Tim has to call in another of his marks leads him to having to do just that. -
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Being a father was never easy, but being a girl dad in the Wayne family was something Bruce never quite trained for. From suit adjustments to makeup, galas, and teenage drama, nothing could have prepared the Dark Knight for this.
He’s just trying to survive the chaos that comes with raising Cassandra Cain.Or
3 times Bruce survived to being a girl dad + 1 time he almost didn’t made it…
Series
- Part 4 of Batfamily Chaos
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Tim Drake’s report on his adoptive sister, Cassandra Cain.
Series
- Part 10 of DC stands for "Dickweed7's Canon"
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Warmth by Sonic_Rider
Fandoms: Batman - All Media Types, Batgirl (Comics), Red Robin (Comics)
26 Sep 2025
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Tim doesn't know the last time he's had a good rest. Cassandra decides thats a Crime.
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They're Gremlin Children, Your Honor by chaWOOPa for coolerdazai
Fandoms: Batman - All Media Types
25 Aug 2025
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The moment they got home and seven-year-old Tim introduced nine-year-old Cassandra to the concept of Batman and Robin, she knew she would be just like them one day. She was a weapon, built only to hurt and take and hurt and take and hurt, of course she would fall in love with the idea of using her lessons to make life better for others, to help them.
Now if only she could get her new brother on board with getting caught by the Bat so they could be officially included in the nightlife, things would be perfect.
OR
5 times Robin found them and the 1 time it was Nightwing's turn.
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A Presentation in Ethical Kidnapping by MoonandSunStones
Fandoms: Batman - All Media Types
14 Aug 2025
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Tim’s thought his life couldn't get weirder when he found an ALIVE Jason Todd
Then the Joker happened
Then someone decided to start stalking him
Then they all broke into the hospital
Oh yeah, then there was the whole bio-son situationHonestly, Tim was just lucky Drake manor could fit his new fam– all these random strangers
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to the moon and to saturn by thezenithcalls
Fandoms: Batman - All Media Types, DCU, DCU (Comics), Batman (Comics)
31 Jul 2025
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A gala, a favor for Superman, and heart-to-heart between Tim and Cass.
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Red Hood narrowed his eyes. Again, Nightwing couldn’t see his expression, but that was kind of the point of the helmet. “What do you mean, history repeating?”
“Robin, 15, running away after a rough case. Only clue he left? A note about family.”
Jason stopped himself from flinching, but it was a close thing. Goddamnit, yeah, that hit a nerve. Fuck Dick for that - this wasn’t close to the same thing, ok? No way had he driven Tim off to meet the same fate Jason had.
Right?
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When Tim disappears after fighting Red Hood in Titans Tower, Dick naturally blames Jason. Jason doesn't want to believe it, but the evidence is pretty convincing. Dick wants his youngest brother safe. Jason doesn't want a kid's death on his hands. Together, maybe they can save a wayward bird and bring the family back together.
Meanwhile, Tim is feeling pretty great about his progress in tracking down Cass. It sucks he had to ditch the others to deal with the Red Hood situation alone, but Batgirl needed her Robin. Jason was annoying, sure, but he could chill out for a minute while Tim went to kick Deathstroke's ass for messing with his sister.
The note he left explained all that, right? Right?
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If you were stranded on an island with no wind by missLimao
Fandoms: Batman - All Media Types
02 Jul 2025
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Damian Wayne is a traumatized little boy who needs attention but doesn't get it.
He ends up finding a garden that leads to a forest unlike anything he has seen.
He makes friends (siblings?) and has fun, but everything comes at a price.There comes a point where he is locked in the woods along with his new family. But nothing stops Damian from looking for a way to free himself.
**RE-WRITE**