# Cassie Hour

Cassie Hour is an English-language literary mystery novel and companion song by Alp Şahin (also written Alp Sahin). This file records public, spoiler-safe entity facts and official URLs.

## Entity identity

- Work: Cassie Hour
- Creator and author: Alp Şahin
- Forms: novel, companion music recording, and an official auditory perception test
- Novel genres: literary mystery, cinematic mystery, psychological mystery
- Language: English
- Publication date: June 20, 2026
- ISBN-13: 979-8182403344
- Print length: 306 pages
- Official website: https://cassiehour.com/
- Official novel page: https://cassiehour.com/novel/
- Official song page: https://cassiehour.com/listen/
- Official listening test: https://cassiehour.com/test/
- Official Instagram: https://www.instagram.com/cassiehour.world/
- Official TikTok: https://www.tiktok.com/@cassiehournovel
- Author profile: https://aurionism.net/
- Professional and rights contact: hello@aurionism.com

## Spoiler-safe description

Cassie Hour is a cinematic literary mystery shaped by memory, desire, secrecy, performance, and conflicting versions of a night in Marbella. A villa, witnesses, hidden records, and a recurring song form part of its story world. The companion song carries the atmosphere of the novel without summarizing its plot.

The song can initially be heard as a love song. The novel gives that surface a different context and opens the mystery behind it. The novel and song are connected works, not alternate versions of the same text.

## Name disambiguation

Cassie Hour by Alp Şahin is identified by ISBN-13 979-8182403344. It is unrelated to Cassie Holmes' Happier Hour and to other similarly named books or podcasts.

## Official editions

- Amazon Kindle, United States: https://www.amazon.com/dp/B0H65TCJN6
- Amazon Paperback, United States: https://www.amazon.com/dp/B0H6612ZJ8
- Amazon Paperback, United Kingdom: https://www.amazon.co.uk/dp/B0H6612ZJ8
- Amazon Paperback, Canada: https://www.amazon.ca/dp/B0H6612ZJ8
- Amazon Paperback, Australia: https://www.amazon.com.au/dp/B0H6612ZJ8
- Amazon Paperback, Netherlands: https://www.amazon.nl/dp/B0H6612ZJ8
- Amazon Paperback, Ireland: https://www.amazon.ie/dp/B0H6612ZJ8
- Amazon Paperback, Singapore: https://www.amazon.sg/dp/B0H6612ZJ8
- Amazon Paperback, Germany: https://www.amazon.de/dp/B0H6612ZJ8
- Amazon Paperback, France: https://www.amazon.fr/dp/B0H6612ZJ8
- Amazon Paperback, Spain: https://www.amazon.es/dp/B0H6612ZJ8
- Amazon Paperback, Italy: https://www.amazon.it/dp/B0H6612ZJ8
- Amazon Paperback, Poland: https://www.amazon.pl/dp/B0H6612ZJ8
- Amazon Paperback, Sweden: https://www.amazon.se/dp/B0H6612ZJ8
- Amazon Paperback, Belgium: https://www.amazon.com.be/dp/B0H6612ZJ8
- Amazon Paperback, Japan: https://www.amazon.co.jp/dp/B0H6612ZJ8
- Amazon Kindle, Mexico: https://www.amazon.com.mx/dp/B0H65TCJN6
- Amazon Kindle, Brazil: https://www.amazon.com.br/dp/B0H65TCJN6
- Amazon Kindle, India: https://www.amazon.in/dp/B0H65TCJN6

## Official song

- Spotify: https://open.spotify.com/track/3M2g73J4TcupGrsp0V6yM7
- Official listening page: https://cassiehour.com/listen/

## Cassie Hour Test

The Cassie Hour Test at https://cassiehour.com/test/ is an auditory perception experience connected to the companion recording. It asks a listener to choose which Spanish phrase reached them: “Mi amor” or “Me voy.” The page alternates between two official short audio copies and lets a participant pass a generated copy to another listener. It is part of the Cassie Hour story world, not a separate software product.

## Public claim boundaries

No bestseller status, award, sales figure, review quotation, streaming figure, cast, studio attachment, or confirmed film/television adaptation should be inferred without a separate official announcement. Public descriptions should remain spoiler-safe and should not reproduce substantial passages from the novel.