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  1. Public Bookmark 14

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    Summary

    “They’ll never want to travel with me. And even if for whatever reason they do, they’ll leave.” His smile was starting to get really unnerving. “If they ever find out what I’m really like, they’ll hate me, and leave.”

    Siffrin laughed again. “But it doesn’t matter anymore. I’m stuck because my wish is fighting the King’s wish, right? I think my wish is taking priority over the King’s since it’s more recent and has more intent, but if neither wish can be fulfilled, then there’s no way out.”

    “Surely you could just ask–”

    “If neither wish can be fulfilled,” Siffrin continued, talking as if Loop didn’t even speak, “then I just have to break the wishes.”

    (An ACT 5 scenario where Siffrin realizes that the only way to break a wish is to erase the wishmaker, and Loop must do whatever they can do stop them.)

    Language:
    English
    Words:
    13,119
    Chapters:
    1/1
    Comments:
    26
    Kudos:
    74
    Bookmarks:
    14
    Hits:
    387

    27 May 2026

    Bookmarker's Notes

    complete

    HOLY FUCK THIS HURT ME /gen

    in the good way though

  2. Public Bookmark 44

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    Summary

    The party notices Siffrin listening in on their conversation during Act 5. As a result, he travels through the House with them at his side and notices some odd ghosts lurking around in familiar places. Their family, friends, allies, colleagues become suspicious of their every movement.

    Language:
    English
    Words:
    20,488
    Chapters:
    2/?
    Comments:
    28
    Kudos:
    220
    Bookmarks:
    44
    Hits:
    1,861

    11 Feb 2026

    Bookmarker's Notes

    ch1

    party notices siffrin in a5

  3. Public Bookmark 19

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    Summary

    "Y-YOU DON'T KNOW YOUR AGE???" 

    Siffrin's party - family - realizes they don't know their age. But, oh, the worst of all, is that his birthday coming is in two days?! Mirabelle couldn't possibly let them not have a nice birthday, not if she can help it! Not that Siffrin really cares anyway. If anything, what's up with those hushed voices and giggles from Isa and Mira?

    Language:
    English
    Words:
    5,026
    Chapters:
    2/3
    Comments:
    23
    Kudos:
    113
    Bookmarks:
    19
    Hits:
    1,115

    06 Feb 2026

    Bookmarker's Notes

    ch1

    birfdaefrin <33333333

  4. Public Bookmark 14

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    Summary

    Odile is a young woman pursuing a study in astrology when she finds Siffrin washed up on the shore near her home. She ends up growing up alongside the boy, not quite raising him but its enough that the two see each other as family. The island is forgotten, her research collapses and the duo head to Vauguarde in an attempt to figure out what exactly is going on, getting stuck in an endless loop of the same day over and over.

    alternative title : siffrin washes up on the shores of ka bue instead of vauguarde.
    alternative alternative title : odile is stressed and siffrin is a little shit and they both end up in the time loops.

    Language:
    English
    Words:
    3,581
    Chapters:
    2/?
    Comments:
    9
    Kudos:
    54
    Bookmarks:
    14
    Hits:
    498

    21 Jan 2026

    Bookmarker's Notes

    ch2

    siffrin washes up in ka bue, not vaugarde

    momdile /silly

  5. Public Bookmark 26

    Tags
    Summary

    In the moment of ultimate desperation, Siffrin sees a future: a new yet untread path to follow. What Siffrin could not foresee is waking up in a body not their own. A different world, with different rules. Be careful what you wish for.

    OR

    Siffrin accidentally becomes Kris' Red Soul, and is forced to deal with the repercussions of that. The world of Deltarune is very different to the world of ISAT after all.

    Language:
    English
    Words:
    8,861
    Chapters:
    2/?
    Comments:
    34
    Kudos:
    93
    Bookmarks:
    26
    Hits:
    1,347

    15 Jan 2026

    Bookmarker's Notes

    ch1

    SIFFRIN SOUL REAL

  6. Public Bookmark 45

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    Summary

    A Tale of Stars And Time is a crossover AU/AT that combines both Undertale and In Stars and Time. Originally inspired by a few memes/fanworks of Siffrin in Undertale, this concept does exactly that – take the characters from ISAT, shove them into Undertale and see whatever the heck happens next.

    The general plotline involves Siffrin going through their usual time looping shenanigans in their own world when, mysteriously, a strange grey door appears in a hallway that definitely wasn’t always there. Upon closer inspection, Siffrin and co. are suddenly thrust into the very beginning of the Underground. They are soon met by Frisk, a strange child with more to them than meets the eye. Now, the six of them will journey through the Underground, meeting familiar friends and dangerous foes, with plenty of surprises along the way.

    A new play is about to begin, so get on stage, stardust~!

    Language:
    English
    Words:
    46,701
    Chapters:
    25/?
    Collections:
    1
    Comments:
    72
    Kudos:
    175
    Bookmarks:
    45
    Hits:
    4,208

    07 Dec 2025

    Bookmarker's Notes

    ch23

    UndertaleFrin

  7. Public Bookmark 38

    Tags
    Summary

    Based off the short film on yt: Detective Alice and the Inside Game.

    Roblox HQ has been receiving countless reports for years from a certain red hacker.

    A few months ago, Builderman handed the case over to Shedletsky after discovering something he refuses to tell people about.

    But hey! Atleast the CEO’s assistant seems to be getting involved— maybe he can help shed some new light on this situation.

    OR: Seven is Builderman’s personal assistant! Shedletsky goes insane! A very specific chaotic red exploiter! Oh and Builderman is so done with this.

    Series
    Language:
    English
    Words:
    16,502
    Chapters:
    5/?
    Comments:
    117
    Kudos:
    289
    Bookmarks:
    38
    Hits:
    4,719

    16 Nov 2025

    Bookmarker's Notes

    Ch1

    N7 is Builderman's assistant, Builder knows about c00lkidd

    HOLY SHIT STICKMASTERLUKE SHEDLETSKY AND DOOMBRINGER LOST TO C00LKIDD

  8. Public Bookmark 30

    Tags
    Summary

    It was over in an instant.

    Before Bonnie could even blink.

    The King attacked, and.....

    Everyone was dead.

    After the party's first encounter with The King, time doesn't loop back. Bonnie, the sole survivor, runs out of the House in a panic to find that everything else has already been frozen in time... everything, except a weird not-sadness star person.

    Loop doesn't know what they're doing- time should've looped back by now- but until it does, they're going to help The Kid and get them outside of Vaugarde, beyond the reach of frozen time.

    Language:
    English
    Words:
    9,506
    Chapters:
    4/10
    Collections:
    1
    Comments:
    117
    Kudos:
    164
    Bookmarks:
    30
    Hits:
    1,865

    19 Sep 2025

    Bookmarker's Notes

    OH NO LOOP AND BONNIE ROADTRIP TO FLEE VAUGARDE BECAUSE EVERYONE ELSE DIED AUHGJFKDJBFOQBFLWOSBFE

    Loop plans, packs. Bonnie collapses from exhaustion oh noes

    ch3

  9. Public Bookmark 72

    Summary

    An AU in which Siffrin is a vessel for an eldritch deity known as the Weeping God. They had another name, once, but that name is gone.

    This series will be mostly chronological order, spanning from the years after the island disappears all the way to post-canon ISAT! There will be spoilers for the entire game! (And probably Two Hats, in spirit if not in technicality.)

    Lore Series (basically where we put works centered around Astreia worldbuilding and their pantheon :3): https://archiveofourown.org/series/5388566

    Words:
    88,486
    Works:
    15
    Bookmarks:
    72

    18 Sep 2025

    Bookmarker's Notes

    EDLRITCH SIFFRIN YEAHHHHHHH

    w12

  10. Public Bookmark 27

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    Summary

    What if Siffrin disappeared instead of Loop?

    Language:
    English
    Words:
    18,985
    Chapters:
    18/?
    Collections:
    1
    Comments:
    465
    Kudos:
    247
    Bookmarks:
    27
    Hits:
    4,663

    17 Sep 2025

    Bookmarker's Notes

    Ch1

    STARDUST DISAPPEARS INSTEAD OF LOOP

  11. Public Bookmark 9

    Tags
    Summary

    Its been so long since Siffrin has gone outside the blinding script, so long since they've broken the formula of the play. They knew they'd mess things up if they did, and lo and behold, they were right!

    They have no idea where in the universe they are, and what the hell these portals that look like broken wishcraft are.

    Language:
    English
    Words:
    2,196
    Chapters:
    1/10
    Comments:
    6
    Kudos:
    30
    Bookmarks:
    9
    Hits:
    318

    12 Sep 2025

    Bookmarker's Notes

    1/10

    CROSSED WISHES BUT AGAIN! PEAM

  12. Public Bookmark 7

    Tags
    Summary

    The party from In Stars and Time are in the Pantheons Of Hallownest, all at the start of their respective pantheons, I didn’t write beyond yet.
    I will return to fleshing this concept out from the start don’t worry, just felt like compensating for lack of AMiC and Celebrating SilkSong!
    I will return to this, darling Stars! And trust me, this will make more sense.

    Series
    Language:
    English
    Words:
    1,634
    Chapters:
    1/1
    Kudos:
    29
    Bookmarks:
    7
    Hits:
    299

    10 Sep 2025

    Bookmarker's Notes

    HOLY SHIT ISAT SILKSONG IS REAL

  13. Public Bookmark 87

    Tags
    Summary

    r/ChangingTimes ⠂Posted 5 days ago
    u/NerdIsabeauTruther

    There's been plenty of controversy over the post made by OutOfTheLoop that details a supposed secret character in Changing Times in a Frozen Land named "Siffrin," and I felt the only reasonable course of action was to see if I could verify their claims myself.

    I can now say for certain that Siffrin is a real character, so here's a pseudo-tutorial on the steps I took to unlock them.

    Language:
    English
    Words:
    5,092
    Chapters:
    5/5
    Comments:
    218
    Kudos:
    389
    Bookmarks:
    87
    Hits:
    3,035

    24 Aug 2025

    Bookmarker's Notes

    COMPLETE

    Changing Times AU

  14. Public Bookmark 11

    Tags
    Summary

    Isabeau waits by the favor tree, Every time.

    He wishes. Over and over.

    And he now has as many chances as he likes.

    Language:
    English
    Words:
    5,587
    Chapters:
    5/?
    Comments:
    39
    Kudos:
    52
    Bookmarks:
    11
    Hits:
    1,114

    24 Aug 2025

    Bookmarker's Notes

    Ch4

    Isa POV, Isafrin loops [LOOP 3, HHM OFFICE/NYA COUNTER]

  15. Public Bookmark 12

    Tags
    Summary

    The result of Siffrin's mental health gradually deteriorating in the loops. He attempts to end his existence by any means necessary, disturbing Loop with his twisted behavior and refusal to stop.

    Language:
    English
    Words:
    4,059
    Chapters:
    4/4
    Comments:
    19
    Kudos:
    92
    Bookmarks:
    12
    Hits:
    1,053

    23 Aug 2025

    Bookmarker's Notes

    COMPLETE

    HOLY SHIT SIFFRIN THAT KILLING MIRA SEGMENT WAS HORRIFYING

  16. Public Bookmark 20

    Tags
    Summary

    siffrin, after learning that their relationships won't help them get out of the loop, accidentally opens a dark world

    Language:
    English
    Words:
    4,854
    Chapters:
    3/?
    Comments:
    28
    Kudos:
    84
    Bookmarks:
    20
    Hits:
    1,416

    23 Aug 2025

    Bookmarker's Notes

    Ch3

    Fun gang joins ISAT

  17. Public Bookmark 21

    Tags
    Summary

    That’s it, then. You sort of never thought this moment would come, but it did. Vaugarde is saved. The King is defeated. Your journey is over.

    Right. You will stay here, or maybe go off on a pilgrimage all on your own. Isabeau will go back to Jouvente to pursue his dream. Bonnie back to their sister. And Odile to Ka Bue.
    And Siffrin…well, they’ll return to traveling, of course. Just like before. That’s fine. It’s what he wants. It won’t be any different than it was before.

    You’re just glad that this story had a happy ending.

    But... did it?

    A moment of hesitation will make the outcome of the Favor Tree's wish different. And when everyone is gone... who are you when you're alone?

    Language:
    English
    Words:
    11,401
    Chapters:
    3/?
    Comments:
    28
    Kudos:
    114
    Bookmarks:
    21
    Hits:
    2,072

    22 Aug 2025

    Bookmarker's Notes

    Ch3

    Mira POV of Rogue Planet

  18. Public Bookmark 52

    Tags
    Summary

    As told via a series of reviews of said playwrights’ plays by the acclaimed theatre critic Regina de Felis-Flores

    Series
    Language:
    English
    Words:
    10,975
    Chapters:
    6/6
    Comments:
    200
    Kudos:
    205
    Bookmarks:
    52
    Hits:
    1,582

    19 Aug 2025

    Bookmarker's Notes

    COMPLETE

    Various Play Synopsis Reviews about the Saviours (and Loop)

  19. Public Bookmark 31

    Tags
    Summary

    For as long as you can remember, you've been intolerant to a LOT of things. Fruit, veggies, grains, and most animal produce! It's a bit annoying, but you didn't have time to worry about that because you, Siffrin, are here to help the Saviors fight the King and save Vaugarde! So don't worry about why you're afraid of fire, why you forget to eat with utensils, why you get such a tingle when hunting things, it's fine! Normal even! You're just a little different!

    Right?

    Language:
    English
    Words:
    21,142
    Chapters:
    4/?
    Comments:
    43
    Kudos:
    157
    Bookmarks:
    31
    Hits:
    2,461

    15 Aug 2025

    Bookmarker's Notes

    Ch3

    Carrionfrin has Pyrophobia and a delicate stomach (also I SAW THAT CANNIBALISM TAG OH NO)

    HOLY SHIT KING, LITTLE HARDCORE. BURNING SIFFRIN ALIVE IN FRONT OF HIS FAMILY, YEAH SURE I GUESS, TOTALLY AND 100% NORMAL

  20. Public Bookmark 13

    Tags
    Summary

    "When we made it to Vaugarde, w-we saw...uh. OH!!! We once found a lone traveler! They seemed...small? Wearing comfy clothes...they always seemed strange. As if they were lost...barely able to socialize...but unable to stay alone.

    ...w-we stopped seeing them one day. And one morning...we...

    ...

    Um. Wherever they are now...I hope they find peace."

    or,

    Siffrin never meets the party. No one notices him disappear.

    Series
    Language:
    English
    Words:
    3,363
    Chapters:
    2/2
    Comments:
    50
    Kudos:
    122
    Bookmarks:
    13
    Hits:
    1,208

    09 Aug 2025

    Bookmarker's Notes

    COMPLETE

    Sif kills themself because they didn't stay w/ the party

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