Strange nightmares are plaguing the ponies of Equestria.

Somepony must help ponies to face their deepest fears, but unless Princess Luna is able to discover who—or what—is responsible, the nightmares may never end.

Scootaloo is ready to prove that she can be as fearless as her big sister, Rainbow Dash, even if it means never having a peaceful night's sleep again.

Nightmare Night, the one evening where all your worst dreams come true, is almost over...or is it? With Luna's moon still glimmering over Ponyville, the Apple family gathers together in their storm cellar to exchange scary stories before turning in for the night.

Some comments contain spoilers!

Entry for HONORABLE MENTION in the Poniverse Nightmare Night Contest

Don't Sit Near the Apple Tree (with Anypony Else but Me) - told by Granny Smith: A young Granny Smith finds a dying apple tree in the orchard. Anypony who goes to chop it down is never seen again.
I See Dead Ponies - told by Apple Bloom: Scootaloo and Sweetie Belle spend the night in a haunted cottage but when their stay becomes miserable, they receive unlikely help.
Fiddlin' Amok - told by Applejack: Fiddlesticks auditions for the Canterlot Chamber Orchestra which soon becomes cursed when she doesn't get in. Contains gore.

This story is a sequel to One Day in the Life of Princess Celestia

Three days after an uncomfortable conversation with Princess Luna about a dream Rarity had about herself with Celestia, Twilight, and Luna, she finds that everyone is treating her strangely. What she doesn't realize is that everyone knows about the dream...but they think it really happened. What will it take for Rarity to get her life back to normal?

Twilight had taken the responsibility to watch over 3 certain fillies for the night. Twilight plans on telling scary stories for the night, an the fillies claim they aren't scared of any stories, so Twilight makes a bet, that if the fillies can withstand the whole night, they'll get a reward. They sure do have a surprise coming at the end.

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As a filly living in Canterlot Castle, Twilight Sparkle either wakes up from a scary nightmare, as well as missing her family, or a thunderstorm, Princess Celestia comforts her. Just because she was her mentor didn't mean she couldn't offer a motherly touch.

Sweetie Belle starts having something many ponies her age go through: Nightmares. The only problem is, these nightmares are causing something else to happen. Sweetie is wetting the bed.
In order to solve this problem, Rarity finds a rather unusual solution to help her little sister.

Big thanks to Wandering Pigeon who helped me writing some chapters and SuperPinkBrony for editing and proofreading my story.

Warning: This story contains diapers, light usage of them, accidents, childish behaviour and a lot of innocence. If you don't like stories that focuses on these kind of subjects, I advise you to not read the story, but if you want to see new things, enjoy the story!

Sweetie Belle is invited by Twilight Sparkle to the decrepit castle in the Everfree to see if they can't find any other spell books, and Sweetie wouldn't lose such an opportunity. Unfortunately, she gets lost after a brief distraction and can't find her way back. The more she panics, the scarier and more twisted the trees started to become, and the more Sweetie starts to see things coming from the bark that disappear when she looks at them directly.

Cover art by Ralvar. Source on the image.
Psychological Horror
I fancy this as the theme of the story.
There are hidden symbols in here explaining what is happening. Can you find and decipher the hidden story?

Apple Bloom thought it was just a game at first. That was what Sweetie Belle had said anyways. It was just something to bring out at sleep overs to scare each other silly before going to bed.

But then Apple Bloom started playing with the Ouija board by herself... or so she thought. At first she’s thrilled when her parents contact her. It gives her a connection with them she always wanted but never had. But as time goes on, the things they say sound less and less like what a parent would say to a child. The things they ask her to do become more and more unthinkable.

When she decides to throw away the board game, she thinks that will be the end of it. Unfortunately, she might be done playing with it, but it isn’t done playing with her.

- Inspired by a series of artworks by xxmarkingxx

Sunny Breeze is living a quiet life in Ponyville until one night, Rainbow Dash suddenly appears at his door! What does she want? What's really going on here? What are her true motives? All may not be as it seems, especially Sunny himself.

Thanks to MrSing, Sayer, John117, Nahmala, and Brony2893 for their prereading, advice and edits. Thanks a million, comrades!

Big thanks to Sayer for the awesome cover art! If you want an artist, he's the man you ought to talk to.

Lastly, feedback is appreciated; don't hold back if you got something to say.

Bringing this out of hiatus soon. Updates to follow.

Right before the big Canterlot Wedding, Twilight Sparkle makes a 'false' accusation against 'Princess Cadence.' Abandoned by her friends, teacher, and brother, the heartbroken pony experiences conflicting feelings of guilt and anger. Seizing this opportunity, Chrysalis takes in the fragile unicorn as her protege for her plan to plunge Equestria in darkness and chaos. With the Elements useless and the world being torn apart, how can Princess Celestia and the Elements possibly undo the damage they could've so easily prevented? And will Twilight be able to push away the darkness, or lose herself to it?

Note: Alternate Universe because of a few....'secrets' certain characters have, as well as obvious other reasons.