Homestuck and Harry Potter Crossover.

I'll try to keep as close as possible to the personalities, especially Dave (I keep wanting to type David, since that's my friend's name, of which I call him Strider cause he looks so similar to Dave, save the shades *-*). I'll try my best, but I might have to change a few things.

Homestuck Cast:
Davesprite/Dave (I am making him able to switch between sprite and normal, cause I can. (only him, despite how much I want Karkat... I just can't do his character, only because of the big words he uses more often than not XD))

Harry Potter Cast:
All of them, save the unspeakables (because I don't understand it at all) and the less mentioned people and etc.

Anyone else Cast:
Possible OC, most like an important side character. Ex., Molly Weasley. She killed Bellatrix yet has no major role. Etc.

Yes, LOHAC is the literal title of this. I also know that Harry was born 15 years before Dave, but pretend that because of SBURB, paradoxes, doomed timelines and etc. that Dave, as a result, messed up numerous peoples ages and births. So, he is the older one... by 15 years. Though, ONLY in an alternate timeline.

Everything you remember as being logical in HS/HP, forget it...save for LOHAC, the dead Dave's, God Tier stuff, Doomed Timelines, Horrorterrors, Derse, Phrospit, baaaaaaaaasic plot for HP. I'll add to this later most likely in another chapter when I think of more.

LOHAC is based off of tenaciousToxophilite's Fortune Favors the Bold: https_:_/_/www._fanfiction._net/s/11196128/1/Fortune-Favors-the-Bold (remove the _)

Spoilers may occur. I am changing some facts from HS, but not a lot... I think.

Summary:
What's a hero when your actions are of that of an enemy? Spirit broke, only logic guiding him, past words lingering in the back of his mind, future worries arising, Dave fucking Strider is in a dilemma. Going in the present past future or whatever brought up things that Dave thought that could've left behind him for good.


LOHAC

Chapter 01: The First Goodbye

"I'm not."


"Whoa Dave! That's, like, so heroic-"

Dave cut off the other before she could say more.

"I'm not a hero. Bro was," He thought back to how the FrameWork Broadsword pierced through his brother-father's chest. "John is," Wait. Didn't he- "I'm not."

The girl frowned at him, emerald orbs shining. "Jade," He whispered, form shaking as he held up the FrameWork, as if prepared to swing. "You need to understand. As the Witch of Space, you are the most dangerous. No... you're barely even Jade anymore! Grimbark... Grimbark, Grimbark, Grimbark, Grimbark, GRIMBARK! BARK BARK BARK BARK BARK! YOU'RE THE FUCKING CAUSE OF ALL OF THIS!"

He moves, creating a large gash in Jade's-no, Grimbark's side. Jade's eyes, once gleaming, lost their shine. Only a faint twinkle was left, showing that she was alive.

"BARK! BARK BARK BARK BARK BARK BARK! YOU STEAL JADE'S BODY AND THEN YOU FUCKING SEND JOHN WHO KNOWS FUCK WHERE! YOU USE ME TO MANIPULATE ROSE, BREAKING ANY TRUST SHE HAD LEFT IN ME! YOU RUINED ME!" He stops, panting. His cracked shades fall from his face, the arm finally snapping. His mutant, vile, candy red colored eyes burn with a fury that had the creature reeling. The Knight of Time can control the Horrorterrors, even better than the Witch of Space.

"You... broke... me. Now, I will break you! BARK!" With a renewed fury, somehow, he uses his free hand to strangle the beast in his as of recent ex's body, falling to the ground as he did. With each cry, he stabbed the girl-beast. "BARK! BARK! BARK, DAMMIT! YOU'RE A FUCKING GRIM, WASN'T THAT FUCKING RIGHT YOU PIECE OF SHIT?! BARK! BARK BARK BARK BARK BARK BARK!"

When something other than red caught his attention in more than one way, he stopped and looked at his bare and messed up arm. Blue liquid was sliding down it. Then another drop hit it. He moved a hand, letting go of Jade's neck as he did, and slowly trailed it upwards until he made contact with his nose. Pulling it back, he was surprised to see it was blue, hoping it was a trick of the light. Wait... He glanced at his even more messed up side. The red was now blue. Was he going colorblind? He shrugged and turned his gaze back to Jade's face, all of the sudden confused.

He froze. Her features were not that of Grimbark. Dead, cold, betrayed, forest green orbs stared at him. The twinkle was gone. It had been, for the past hour possibly.

He screamed.

"Jade... Jade... JADE! WAKE UP, BITCH!" No response. He was something! A snarl, Grimbark even, as that would mean Jade was still alive.

He shakily stood and looked around him, briefly noting the blue blood on him was back to red. Rose-killed by his hand when he was alchmizing, "accidentally" pushing her onto the platform (though controlled by Grimbark). She was now that of a monster of Jack Noir, though still recognizable by her hair and eyes. John-possibly very likely killed by Jade via Grimbark using her powers-a portal opening caught his attention. The limp and mauled body of John made his breath hitch. Make that killed. Jade-killed by his hand in an act of pure murder, Grimbark having obviously left his host long ago, if not killed. He had even "killed" her corpse, if that made any sense.

He put a pair of bloody hands to his face, covering his eyes from the sight of blood, fire, rotting flesh, and his dead friends he killed. That didn't stop the smell though.

"The Knight is dead. The Knight of Time is dead!" He yelled, almost with glee. It probably would have been, if not for his voice cracking. "Dead! Dead dead dead! Heroic! Just! HEROIC HEROIC HEROIC! YOUR WORDS ARE BORING!" He didn't know who he was raving at, just knowing that he killed three people he had become close with and loved (Rose-sister, Jade-ex girlfriend, John-ex boyfriend). And that didn't even count the trolls. Oh, no.

"H-Honk..." He heard. It was weak. He dropped his hands and slowly turned his head. There, crawling on the ground, was Gamzee. Oh, and Karkat. The last two remaining trolls to be alive in any shape of form.

Karkat's jugular was slashed-him of course-and thus couldn't speak, mute. He may have had only one leg now, but he refused to crawl. He simply hopped, Terezi's cane under his right hand. Gray liquid poured from him, leaving a trail just as the clown's indigo blood did.

Gamzee was worse off, Dave having hated the clown. Both legs gone, right arm chopped off from above the elbow, head just barely beheaded. He, for whatever reason, went mad after Jade was fully possessed by Grimbark and thus ended Noir's-or Spades Slick's-life out of all people. The then started for Viriska, going up and down the chain for the trolls.

The world getting pretty much destroyed by a stupid fucking game that was a shitting gateway to whatever, SBURB. He could handle that. He could handle killing his bro-fath. He could handle his friend's anger, Karkat's random slaps, Rose's rants, Jade's stupid talk about the feature or whatever, and John's constant "i told u so"'s when he found out that he was too headstrong.

He couldn't handle his own death, however. He couldn't handle Jade being possessed by stupid fucking Grimbark-Bec Noir-whatever. No, he had to go freaking mad and shit and go on a killing spree because he was too weak to decide to get any sense out of anything and listen to Rose. Nor did he bother in sticking to Jade's plan, which was to surrender herself to Grimbark in the first place THEN have him go back in time to the doomed timeline to kill Bec or whatever, thus forever sealing away the possibility of anything like that he did happen. But no.

He had to be a stupid wimp was could face practically literally anything save his own death. And Grimbark possessing people, but that doesn't really count. He's afraid of blood, became traumatized of puppets and dolls alike because of his brother, metal clashing also because of said brother, and many other things because of his brother-ectobiologized-father.

And of course... he shivered at both the looks the received and the wind that hit his bare back. He just had to be able to switch between the living and dead corpses of himself on both the physical place and the astral one.

He turned around again, not wanting to see the faces he hated and loved so much. He had a blackrom with Gamzee, had being the keyword. Now, he just felt so damn GUILTY when he looked at him. Karkat... was his moirail. A palerom. The blackrom was officially the ashen quadrant, palerom being the pale quadrant.

He gasped when a cold finger traced along his spine before making patterns. Tracing, still. After gaining the ability of switching to his sprite form, wings of gold were carved into his back, the crimson blood that had once flowed turning gold. He didn't know if he bled gold, red, blue, or black of all be cared. He would rather not know, anyway.

"KK..." He muttered, voice wavering. He sharply turned, an unknown look in his eyes (resignation). With a wave of a hand, his turntables appeared. Without warning, he spun them and a bright light covered the two trolls. A few seconds later, it faded. They were fully healed, no body parts missing or anything, current mindsets still in tact with current memories. However...

"Argh!" He collapsed, all four limbs gone along with the other numerous injuries they had. Four, because Gamzee's leg which was already occupied by Karkat's switched to his free arm.

The trolls immediately rushed over, actually tearing up. Karkat pressed his cold lips to Dave's. By reflex, he kissed back despite the blood leaking from his own pale lips. His vision began to burn. He coughed, gold flecks flying out. Oh. Is he still colorblind of something? Whatever...

"HONK! Strider, don't you motherfucking leave!" He couldn't stop the bloody grin that nearly knocked his unconscious. "KK... f... flip me o... over." Without question, the troll did as he ordered. At once, he scooted up some by wriggling and vomited, gold shimmering under the light of the fires.

The carved wings on his back glowed the very same before a ripping sound was heard. His skin broke, almost translucent appendages arching upward. He screamed, golden blood pooling around him, getting larger by the second.

"GET THE FUCK AWAY!" They did, going well over ten feet before the real terror started.

A light yellow, maybe white, pendant appeared around his neck, covered in blood. His pale, bloodstained skin changed to a medium yellow, cornsilk hair becoming a shade darker. His lowered torso changed to a sort of wispy form, as if it was simply a long tail. Feathers of sorts appeared on his bare torso, mostly collecting around his collarbone.

He then simply lied there, hovering over his physical body, which quickly faded to the astral plane. It was much like the dream bubble. Dave opened his eyes, irises showing they were still that mutant candy red color Terezi loved so much. Karkat ran forward and took the Strider's hands in his, pulling him down eye to eye before kissing him. This time the blonde hesitated when he kissed back, lips melding together perfectly like a puzzle.

When he spoke, his voice sounded much more somber, but also much more of the normal monotone, despite recent events. "Karkat... Gamzee." He grinned sadly. He scratched his pendant, four portals forming. One behind him and the two trolls, the other two on each side and one above, forming a square.

"Behind you is the option of going to the beginning, back to where it all started. Before we even got SBURB. You have the possibility, though slight, to make sure that it isn't even made. To your left is a simple timeskip back to an hour ago, where I will not have stopped your injuries from killing you, which is where you would die. To your right is to before Jade was possessed by Grimbark, which will happened without fail and you must stop me. Above is to before Jade even discovered Grimbark, where you must kill him."

"Honk, what about the motherfucking paradoxes, bro?" Gamzee asked. Dave didn't answer, his shades appearing onto his face from out of no where, unbroken.

"No paradoxes will happen. Without my being there is whatever way via my future self has laid a path. If you step off it, you will bring four timelines to their doom all at once with you being right in the middle. Don't step off it. Follow any instructions my future self gave you to the goddamn letter."

"Dave," Said sprite finished his explanation to listen to the sickle wielding troll. "What about the portal behind you?"

A silence ensured over the trio, save for the crackling fires or the screams that were still in their minds. Then, an answer was given after Davesprite kissed Karkat once more only, lightly punching Gamzee. His back faced them, his own portal sparking with black tendrils, the other four a deep red.

"The future. You will find everything of why I did what I did-which you will know within thirty seconds after I left-in a letter that will appear only if you choose no portal. If that is so, one will open up under you automatically, bringing you to the future. You won't be where I am, though. You'll be in the present future future, disguised. I will be in the present past future, twenty six years before your time.

"...I love and hate you two," He suppressed his emotions, locking them behind an iron cage as he passed through, ignoring their shouts.


15 *fucking* years before... in 30 seconds (teleporting, that is).

Davesprite sighed. He has just gotta stay on the astral plane until this kid gets his damn letter, which would be within the next month. He rubbed his forehead. God, he was exhausted. Staying a form that you would have been in when you were dead (usually), is taxing. More so because he physically wasn't "allowed" to sleep. At least, that's what it seems like. Oh, gods. His vision is crossing and shit and he's dizzy and-oh shit. The world's spinnin'.

He groaned. This. Was. Hell. His head shot up when the street lights on Privet Drive went out. Was it just another outage? His question was quickly answered when he spotted the outline of a man-were those robes? Or maybe a dress? A nearby cat leaped forward and-

'Oh my god. That cat did not just turn into a human-I'm done. I've had to seen it all by now.'

The now human cat person talked with the man. A few minutes later, Davesprite nearly passing out again, the sound of what he knew to be a motorcycle made him jump. He welcomed it, despite looking uncool as he did, being surprised. He his it behind his shades, despite that no one could see him.

A large man, once landing (the aforementioned motorcycle was flying moments before), clearly towered over everyone. Well, save Davesprite, as he technically grows when he goes onto the astral plane because of his tail. He frowned to himself before pulling a risky move. He took his shades off, hooking them on his shirt, and having his red eyes glow just enough to make out the details of the people, or more specifically, what the giant was holding. It was a baby. He edged as close as he dared, lowering the glow as he did. He did not need to be found out and experimented on anytime soon-he refrained from remembering.

Taking a look at the baby, he immediately got the gist of the whole point of why any of this was happening. Damn kid was Harry bloody Potter, whoever took him from where his parents died by that Marvin Abort guy or whoever, and instead of putting the kid in an orphanage, he goes to some stranger's house. Lovely.

Davesprite resisted to slap the man-the shorter one-and instead studied the motorcycle. It was a real old one. Well, his assumptions were correct. He wasn't nowhere near the year of 2000. Eh, he'll deal with it later... as he avoids any route to America which leads to Texas which leads to Houston which leads to his apartment/soon-to-be apartment which leads to a confrontation with Dirk which leads to him getting angry which leads to him breaking down again in front of Bro's past future self or whatever it was which leads to Dirk dragging the truth out of him of what his alternate future past whatever self did to Dave which leads to Dave/Davesprite confessing in full-more than on the Viel or wherever the hell it was before-and thus that, as a total, will cause Dave/Davesprite to brake.

Yeah, no way is Dave going to let that happen, even an inch.


15 years later... *again*

Okay. Alright. Davesprite face-planted into the wall of the old, musty house again. Well, its been another fifteen years since he left them. Davesprite was... nervous. He, for the past thirty years (and some, counting however many he skipped when god tiering and stuff) hadn't once left the astral plane. For all he knew, his body could have aged rapidly or something and is now dirt. Ignoring that, kind of, he isn't sure if he should/can enter Grimauld-whatever 13/14 as he is. He's gotten to the point where he can only go out on the brightest of days, because then the natural glow he gave off wouldn't be noticed. Pretty much anything he did; sigh, talk to himself, anything-it would just go noticed.

"What was that?" See? Remembered when he face-walled? Uh... that made a rather loud noise, of which just so happened to garner the attention of that lady with, like, light purple hair or something.

He bit his lip. 'Okay okay! I can't go to Potter's school cause of the damn ghosts, not to mention the magic period. I'll be found out right away. But... aren't I pretty much a so-called "magical being" already? I mean, my friggin time powers could technically count as long as I manipulate it to get the results that someone else would have-no. That wouldn't work... would it? And would I even get the stupid letter, being past the age of eleven?'

Davesprite was stressed.

Behind his shades, the man closed his eyes as he willed his body to revert. His yellow-gold skin lightened to pale pink, almost white. Gold hair lightened to a cornsilk, eyes staying the same, feathers melding to his skin (the only left over signs were of the feathers looking like tattoos or the sort), tail splitting to form legs once more. The pendant, too, melded into his skin, also appearing like a tattoo. The wings (or wing, considering the stump) folded and lined themselves to his back before going into the skin, leaving behind two gaping holes, of which revealed the wings inside (of which were close to the spine). Dave, before his numb body could feel anything, took the sword from his abdomen and let it be stored in his strife specifious. He watched as his golden blood changed to red before letting out a cry, the pain finally catching up.

He collapsed just as the door he had stood in front of slammed open. He coughed, feeling the blood drip from his lips as he was levitated inside. If he was right, a Molly Weasel of something of another would be healing him, having a soft spot for kids. Despite how bad he no doubt looked, he opened his eyes. He was put on a bed in a dimly lit room, a woman with red (or orange, depending on your technicality) hair was leaning over him slightly, a stick (wand, his mind supplied) in hand. Brown eyes met red ones, though mostly shades.

"Who are ya, woman?" His voice was very rough, using the Texas accent that he hated. She looked surprised to hear him talk, not an ounce of pain in his voice save for it being a bit strained. She worked quickly, not saying a word until she flipped him over.

"Oh my gosh," She exclaimed, hand over her mouth. Dave let out a sigh. Well, considering that the wings don't really go away, and that he had red eyes, he could say that he's a physical ghost of some sort who was previously human, but was experimented on. Yeah, that could work.

"Forget 'bout my back. Not sure if your kind can treat these things, but mind takin' a look at my wing?" She slowly nodded, muttering that her name was Molly Weasley. Ah, well. He was close.

Dave slowly pushed himself to his knees with the help of Molly, gritting his teeth as tremors racked in his body. He gently pushed her hands away before leaning his forehead on his clasped hands. He let out a choked sob as his wings became stiff before shooting up, golden feathers getting loose and fluttering about. Golden blood splattered a bit on the wooden boards because of the damn stump he had. His features became as they were when he was a sprite, leaving a gasping and slightly hyperventilating Dave on his side.

He flinched when a hand brushed his useless wing. His tail twitched and gently wrapped itself around her wrist, stopping her from feeling it again. "I... would appreciate if ya simply helped me." Molly stuttered out an apology before getting to work, testing out what were "some healing spells", of which didn't do a damn thing. Dave could just feel her scowl. An hour later of very slowly loosing blood, she gave a sigh of resignation and just finally magicked bandages around his wing and his abdomen, which also resisted the spells.

"Sorry that I couldn't heal them, dear." She finally said, sorrow both in face and tone. His blinked slowly and lifted his head to look at her, giving a weak, uncharacteristic smile.

"Yeah, it's fine. Kinda figured it wouldn't have worked anyway. Where... am I?" He wasn't sure if it was a good idea to ask, but he would have to at some point. Might as well get it over with.

She fidgeted for only a moment before straightening. "You're in number twelve Grimmauld Place. Who are you?" Oh, twelve. Eh, guess he was close enough. "Dave Strider. I know ya want whoever to interrogate me, and I'll get ta why I know that in a sec, so I don't mind. Though, ya'll have ta really overload those bandages on that wing with disinfectant. I don't think it's wise ta go in all ghosty and shit. I know that cause it's kinda obvious. Rather typical, really."

She blinked, but then gave a shaky smile.