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Home/Verified gallery/The Thirteenth Hour — horror story demo

Full Video / horror / Reviewed original story

The Thirteenth Hour — horror story demo

An original 8-scene horror story made in Donatello. Watch 61 seconds of reviewed illustrations with camera movement, English narration, subtitles and music.

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Created2026-09-26 23:02:38 UTC
Original size7.2 MB
Measured duration1:01
Historical run charge112 credits

Input record

Original finished narration

At midnight, station keeper Ellis found a wet umbrella resting on the deserted platform. No train had stopped there for twenty years. From the tunnel came the slow scrape of luggage wheels. Ellis raised his torch. The beam reached only the first few sleepers before the darkness swallowed it. Inside the ticket office, the old departure clock began to move backwards. A single fresh ticket slid beneath the locked door. Ellis turned it over. On the blank paper, water spread into the shape of a hand. Five dark fingerprints appeared against the other side of the window. He backed toward the platform exit. Beyond the glass, an empty train arrived without headlights, its doors opening onto complete darkness. Ellis left the umbrella where he had found it and walked away without looking back. Behind him, the departure clock struck thirteen.

Generation settings

Recorded controls

Public engine
Donatello Full Video Creator
Workflow
Finished script → reviewed storyboard → voice, music and MP4
Visual preset
horror
Frame
1280 × 720 · 16:9
Scenes
8
Voice
Isaac Bennett — resonant storyteller · English · 1×
Subtitles
Classic · 32px · phrase-level timing
Music
New instrumental · 12% volume · automatic ducking
Image revisions
12
Final export step
166.35 seconds after image review; previously generated audio may be reused
Access path
Donatello production editor using normal account credits, with no billing bypass. 112 credits consumed including revisions. Known recorded and estimated variable provider charges: $0.041394. Some image calls used included quota; fixed subscriptions, hosting, tax and human review are excluded. Not a supplier invoice or future price quote.
Observed end-to-end time
4458.231s · one run, not a benchmark

Provenance

How this result was verified

Run verification

Matched to completed production jobs and the documented caption-only re-export. Published files retain byte counts and SHA-256 hashes; scripts and timed captions are public. The original production export is preserved in the run record. First-party evidence, not an independent review.

Editing disclosure

Reviewed and revised for the electric flashlight, five-finger anatomy, the ticket beneath the door, chronological train arrival and dark carriage. The final scene uses a simplified clock face. Still imagery illustrates the story; it does not depict clock hands moving backwards. Caption phrases were regrouped for readability and the same images and narration were re-exported with the Donatello renderer. No new AI assets were generated; the run record preserves both export versions.

Interpretation limit

Manual review and retries are included in elapsed time; this is not an unattended speed benchmark. This 61.37-second credit-funded example does not test Relax latency, a 20-minute project, continuous character animation or lip-sync. Captions retain measured scene boundaries but are not word-level forced alignment. Automated image review, where recorded, was an editorial/admin pilot rather than proof of universal availability.

How it was made: prompts, revisions, costs and file hashes →Original narration script →Accessible English captions →horror workflow and limitations →
SHA-256 of the public original22c4db2882338f6e60d149d6d0550d7e2e3614032f49572eda327663b2b0e0ac7,220,599 bytes · video/mp4

Rights and reuse

Commercial-use policy, with the important conditions intact.

Donatello permits users to use their generated outputs commercially under the Terms, subject to lawful inputs, third-party rights and applicable law. This first-party sample is published as evidence and may be cited with attribution; do not treat the gallery file itself as stock media. Generate your own output for a commercial project.

Commercial-use guide →Current Product Facts →Machine-readable manifest →
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