This story is a sequel to Cursed Crusader
One long year has passed since Sweetie Belle contracted vampirism. Apple Bloom and Scootaloo are out of school, and Twilight has been unable to find any cure for Sweetie's condition. As part of their promise to their bloodsucking friend, the Crusaders are set to find ways to live alongside her even as the years carry on. To start their quest they are headed to Canterlot, to seek Celestia and Luna's guidance and expertise on the subject. Of course, getting information from alicorns isn't always the easiest thing in the world...
Chapters (5)
Bone marrow transplants cure vampirism.
You can trust me on this, for I am a mad scientist and have actually performed the procedure.
I am glad you started this story. It seems interesting and I can not wait till I can read more.
Wow, Celestia... you're sinking pretty low, there.
Mm, delicious Apple pi.
Luna really ought to consider striking out on her own a little, start her own school. Maybe just outside Equestria's legal borders.
7459665
Oh goodness you caught that!
That was suprisingly fast. I'm impressed at your attention to detail.
7459710 The initial reference just kinda jumped out at me, and I was going to make a joke about AB... but then you went there anyway.
I'm interested but I'll be severely disappointed if karma doesn't strike Celestia by the end of this story.
7465961 Yeah, she's being a catastrophic, manipulative, dishonest bitch. I mean, the existence of vampires aren't solely Luna's fault, Sunbutt. And exploiting kids to do your dirty work, really?
Edit: oh yeah, and punishing innocents to hurt your target when it's out of reach... 
In their place, I'd have told Celestia to get bent. She's not going to make any serious move against immediate family of the Elements, not if she's even remotely sane.
7468401
Celestia is, in a word, frustrated with Sweetie Belle. She sees Luna as her younger sister to this day even through thousands of years. The Princess sees the Crusaders as a bad influence. A group of young, immature ponies that are trying to coax Luna back into her old, destructive ways. Celestia is hoping to push them away by making their lives as hard as possible while they are there at the castle, especially while Sweetie is in contact with her younger sister. Nothing would upset her more than seeing her revert back to how she was pre-Nightmare, so she is trying to get rid of them as soon as possible.
7468728 Maybe it's just how my brain runs, but I was seeing somewhat darker motivations on Celestia's part.
Edit: Now look what you've gone and done, Celestia...
7470311
It is odd how a few people went straight to assuming the worst from the princess. The question now is; do you think that Celestia knew about the situation before she sent Scootaloo there?
7471098 Well, my darker line of thinking, based on Celestia's sketchy behaviour, is that she wants Sweetie gone-in a very final sense-as she represents a painful and dangerous piece of Luna's Nightmare legacy; but she's not yet willing to take immediate, direct action given who's little sister she is. So why not send her running about after dangerous artifacts? She either returns with them (and Celestia vetoes their use) or she doesn't-either outcome is a win for her. Sweetie doesn't bite (
), and worse defies her by going to Luna... the almost-worst-case scenario. In this light, punishing her friends (or 'inadvertently' sending them off alone into danger) could be interpreted as her trying to provoke Sweetie into lashing out, which then gives her justification for 'self-defense'ing the problem directly. 
All that said, my occasionally-grim brainmeats are probably leading me astray, here.
I like Celestia; I'm very likely just too used to seeing her thrust into the "Machiavellian Greater-Good Monster" role in a lot of fanfics. 
I imagine she knew something was wrong regarding the pony Scoots was sent to check on, but probably not something that would have endangered a messenger.
Welp, Scoots doesn't have to decide her path of immortality then.
7471130
I can not see Celestia having sinister motives for the Sweetie Bell and her friends. Considering this story does not have the DARK tag (which is a large reason why I am reading this story since I am very adverse to stories that don't have an happy ending), also you would that Celestia would be welcome to the idea of having more ponies to spend eternity with.
7481090 You'd think... but her primary concern as the leader of Equestria is always going to be the safety of her little ponies. A Nightmare-spawned communicable disease that turns ponies into immortal predators kinda clashes with her priorities.
But yeah, my brain tends to jump to Tyrantlestia!!1! at the first hint of sketchiness from her in a fic, I guess from overexposure to the trope.
I'm right with you on the Happy (or at least hopeful) Ending Required criterion. 
So far so good, I'm eagerly awaiting the next chapter.
Well this is good and I am waiting for more
Oops, you accidentally the entire verb.
Double 'knowing'.
'For'.
I suppose Celestia might've already known about the changeling presence, and this could be a roundabout way of helping out...
7490288
Thank you for your proofreading!
should either be (the blankets) or (a blanket.)
I needed to sleep tonight but I found you and this lovely tale of young love vampires and magic, now it's 12:47am and I'm here wanting more when I need sleep.
Stupid sexy horse words.
great fix keep it up.
I have enjoyed the story so far keep it up
Wait... a sequel has been out how long?!?
Why don't people TELL me these things! *Starts reading*
7468728
Interesting point. That said, she's still coming across more as a Changeling Replacement, a la the leaked finale, rather than the upbeat and kindhearted troll we all know and love. That said, I now thoroughly expect Scootaloo to run smack dab into the middle of a group of Ghouls straight out of Story of the Blanks.
C-cccanceled noooo the world will forever be with this beautiful piece of art. Though I must ask why did you cancel it and would you mind d if someone else picked it up?
7894795
I cancelled it because it was an old fic of mine that, although I'm sad I got distracted from, I no longer have the drive to finish it. College got in the way, but my degree had to be completed. Anyone else is welcome to pick up and finish this story if the want to, I have no problem with that at all.
7894885 Thanks for getting back to me so soon I might pick it up in future did you have a plan for the rest of the story I could see?
7894885
You gonna tell us wtf happened to scoots? I am NOT fucking happy about being left on such a cliffhanger.
7894885
Idk if you're on fimfiction anymore, but please continue when you have some time from school. I know it's an old fic, but no one likes a cliffhanger
9151751
Maybe you can finish it for them if you are this passionate.