# Horus Heresy 25: MARK OF CALTH | Warhammer Book Club

Page: https://stenobird.com/podcast/arbitor-ian-s-warhammer-book-club-with-mira-manga-6905294/horus-heresy-25-mark-of-calth-warhammer-book-club
Text version: https://stenobird.com/podcast/arbitor-ian-s-warhammer-book-club-with-mira-manga-6905294/horus-heresy-25-mark-of-calth-warhammer-book-club.md
Podcast: [Arbitor Ian's Warhammer Book Club with Mira Manga](https://stenobird.com/podcast/arbitor-ian-s-warhammer-book-club-with-mira-manga-6905294)
Published: 2026-07-11T11:07:00+00:00
Episode link: https://5d5554e0-64f9-4c67-b060-9390e63dce82.libsyn.com/horus-heresy-25-mark-of-calth-warhammer-book-club
Audio file: https://dts.podtrac.com/redirect.mp3/traffic.libsyn.com/secure/5d5554e0-64f9-4c67-b060-9390e63dce82/BC_Mark_of_Calth_Audio_v01.mp3?dest-id=5017945
Processing state: not_requested
JSON: https://stenobird.com/v1/public/podcasts/arbitor-ian-s-warhammer-book-club-with-mira-manga-6905294/episodes/horus-heresy-25-mark-of-calth-warhammer-book-club
Duration seconds: 2464

## Resource

It's time to take a slight detour from the Heresy plot to find out what happened after the events of the Batrayal at Calth. Mark of Calth is a whole anthology just set in ONE PLACE! Will we find out who Mark is? Who knows!!! Support the channel and get EARLY VIDEOS and GIVEAWAYS: Merch ► https://www.arbitorian.com Patreon ► https://www.patreon.com/arbitorian YT Membership ► https://www.youtube.com/channel/UCHOFy9rDa1Zsvb39hYBBVpA/join Get your HOBBY FIX with these fantastic affiliate links! Element Games UK ► https://elementgames.co.uk/?d=11294 Firestorm Games UK ► https://www.firestormgames.co.uk/?aff=6390a44b70fed Elsewhere on the internet: Ian's Bluesky ► arbitorian.bsky.social Ian's Instagram ► instagram.com/arbitorian Mira's Patreon ► https://www.patreon.com/miramanga/ Mira's Youtube Channel ► https://www.youtube.com/user/miramanga Intro Art by @KCP FARGO Title music is 'Black Rainbows' by Karl Casey @WhiteBatAudio

## Actions

- request_transcript: `POST https://stenobird.com/v1/public/podcasts/arbitor-ian-s-warhammer-book-club-with-mira-manga-6905294/episodes/horus-heresy-25-mark-of-calth-warhammer-book-club/transcription-requests` — Idempotently request low-priority transcript generation for this episode.
- read_markdown: `GET https://stenobird.com/podcast/arbitor-ian-s-warhammer-book-club-with-mira-manga-6905294/horus-heresy-25-mark-of-calth-warhammer-book-club.md` — Read the agent-friendly Markdown representation of this episode resource.

A page view does not enqueue transcription. Agents should invoke `request_transcript` explicitly when they need this episode processed.

## Transcript

Full transcripts are not published on public pages unless there is a clear rights basis.