Horror Spotlight: Cosmic Horror Novel “The Day We Ate Grandad”

GoodReads Stats:

Average rating: 4.77
Ratings: 22
Text Reviews: 9
Want to read: 71
Added to shelves: 100

StoryGraph Stats:

Average rating: 5.00
Reviews: 11

Three possible futures. Two versions of the apocalypse. One chance to save the world.

Wes Porter, a severely depressed insanity-inducing playboy, is detoxing from hallucinogens that have unlocked his ability to see versions of potential futures – and he’s just foreseen two ways the world could end. Normally, Wes would leave the hero bullshit to somebody else, but he can’t abdicate responsibility this time… not when both those apocalypses might be his fault.

With some prompting from a mythological bard-prophet who may or may not be real, and a lot of assistance from his monster-eating baby sister who desperately wants to move out of his apartment, and their soothsayer cousin who has his own demons to fight, Wes attempts to save [his] world… but have his poor decisions doomed them all? 

Get it in the Queer March Itch.io Bundle

Title: The Day We Ate Grandad

Genre: New Weird, Contemporary Arthuriana, Cosmic Horror, Family Drama, Urban Fantasy

Age: Adult

Tropes: Weird Arthuriana (Merlin Interferes), Does What It Says on the Tin, Oops I Started A Death Cult (Everyone Makes Mistakes), Finding Myself (And Finding I Hate Me), Addiction-Powered Millionaire Playboy (Mad, Bad, and Dangerous to Know), Creepy Family (Half Human Hybrid Eldritch Abominations who are Inbred and Evil), Lovecraft Lite (with Body Horror), Stopping the Elder Gods (Has Anyone Tried Eating Them?), Toxic Relationships, Judas Kiss.

How I feel about it: I wish more people knew about it, and gave it a go! This book came out a month after I sold the other 2 to Canelo, so it didn’t get a very fair run. A few months after its release, I had to pull The Crows and Thirteenth for their 2024 re-release, and so the series was incomplete. As it lost so much momentum (and I was really burned out and writing other books), I never really got that marketing boost back. I’m determined to rectify that, though.

What surprised me most: It was picked up as a standalone novel by several readers who enjoyed it like that, and recommended it as a standalone novel to an Anne Rice fandom community on tumblr! Wes reminded the reader of Lestat, and the worldbuilding also struck a resonant chord, so it was recced as Vampire Chronicles “Eldritch Edition”. Honestly, that’s the best marketing I could wish for.

This is the book that:

  • Has been out since 2023 and has yet to be rated below 3 stars [as of March 2026], although people have read it as a standalone novel without the context of the previous two books.
  • Is my second most-sold self-published novel via Draft2Digital distribution channels to date (lagging only 6 copies behind the first edition of The Crows, outselling Thirteenth by 21 copies, and outselling Yelen & Yelena by 1 copy).
  • Has sold 72 copies sold via Amazon alone with minimal marketing, with an unbroken Amazon sales streak from May-Nov 2025, selling at least 1 copy each month – and we’re starting another streak, Jan-Mar 2026! Let’s see how long it can keep going!
  • Is the book I’ve spent the most money on so far in terms of editing, interior art, and cover art to match the Canelo covers.
  • Was the third novel of mine picked up by a book club (book club streak unbroken!)
  • What Readers Say:

    “Serial killers and family-eating cannibal monsters shouldn’t be this loveable. Often gruesome but also funny in a dark shroud sort of way. This is a book for fans of weird fiction, gore-spattered horror, and heart-warming stories of cousins standing together against an apocalypse.”

    “I can’t tell if C.M. Rosens keeps getting better or if my love for her characters allows the storylines to cut deeper every time, but either way, I’m not complaining”

    “CM Rosens’ world of eldritch horrors living among us in her Pagham-on-Sea universe is filled with fascinating, funny, completely addictive characters that you can’t stop reading about. … Interesting characters, atmospheric and impossible to put down.”

    “C.M. Rosens’ Pagham-on-Sea books are tremendously good Gothic fun. What happens when the worst guy in your family accidentally starts a cult that might cause the end of the world? Bloody, cannibalistic shenanigans, that’s what! Highly recommended for enjoyers of decaying eldritch families, modern Arthuriana, and rejecting generational curses.”

    “Rosens has a very engaging writing style that feels natural and pulls you into the world of Pagham on Sea and truly brings the characters to life.
    And, as is expected, this book has amazing illustrations too!”

    “Honestly, as excited as I’ve been for this book for years now, I initially really wasn’t sure how I’d feel about a book centred around Wes of all people – partly because he’s one of those I love to hate (and hate to love) but also because I wasn’t quite sure how that might be possible without making it a deeply unpleasant experience. Well, Rosens managed. It isn’t pleasant being in Wes’s head, not at all, but that’s the point – and that doesn’t mean it isn’t fun or enjoyable. I had a great time! I’d even say I love him more than I hate him now, and that is a fucking accomplishment.”

    Learn More

    #cosmicHorror #PaghamOnSea #WomenInHorror
    Dark Photon Studio

    Dark Photon Studio is an umbrella for the artistic and musical endeavours of Shane Edward Semler.

    Dark Photon Studio

    a project on which a good friend is among the contributing creators — nearly at its funding goal

    give a look, make a pledge!
    https://www.kickstarter.com/projects/wardencomics/the-dreamlands-anthology-vol-1

    #comics #comicsAnthology #cosmicHorror #cosmicComics #lovecraftian

    The Eye Collector - a new "trippy" cosmic horror serie from Image Comics

    https://sh.itjust.works/post/57216156

    The Eye Collector - a new "trippy" cosmic horror serie from Image Comics - sh.itjust.works

    Rising creators Jonathan Ball (Last Breeds, Clockfire) and GMB Chomichuk (Blood Letters, Apocrypha: The Legend of Babymetal) are teaming up for The Eye Collector, a new cosmic horror series arriving this June from Image Comics. The series blends standalone storytelling with a larger, unfolding narrative that stretches across time and space. “Each issue of The Eye Collector is designed to stand alone as an experience but also feed into a larger, multi-generational story that moves from the Moon to Earth to a weird, surreal future with shades of Metropolis and shadows of David Lynch,” said Ball. “Our goal is to make each issue its own world and stranger than the one before it.” [https://i0.wp.com/aiptcomics.com/wp-content/uploads/2026/03/eye-collector7.jpg?w=776&ssl=1]

    Let the buyer beware: In author Ava Morgyn's new dark fantasy / cosmic horror novel "Only Spell Deep," a woman finds something ominous in a book store...and things get darker from there. To find out more, check out this exclusive interview.
    https://paulsemel.com/exclusive-interview-only-spell-deep-author-ava-morgyn/
    📖🪄🌊🔥😴
    . . . . . . . . . . . . . . . . .
    #AvaMorgyn #AvaMorgynInterview #AvaMorgynOnlySpellDeep #AvaMorgynOnlySpellDeepInterview #Books #Reading #AuthorInterview #AuthorInterviews #BookTok #Fantasy #DarkFamtasy #Horror #CosmicHorror
    Let the buyer beware: In author Ava Morgyn's new dark fantasy / cosmic horror novel "Only Spell Deep," a woman finds something ominous in a book store...and things get darker from there. To find out more, check out this exclusive interview.
    https://paulsemel.com/exclusive-interview-only-spell-deep-author-ava-morgyn/
    📖🪄🌊🔥😴
    . . . . . . . . . . . . . . . . .
    #AvaMorgyn #AvaMorgynInterview #AvaMorgynOnlySpellDeep #AvaMorgynOnlySpellDeepInterview #Books #Reading #AuthorInterview #AuthorInterviews #BookTok #Fantasy #DarkFamtasy #Horror #CosmicHorror
    Everyone has an agenda and nobody's the hero in Spectre Miniatures' Cosmic Horror. Cults, G-men and academics scrabble for forbidden knowledge across 1930s America while their sanity quietly packs its bags... #Kickstarter #CosmicHorror #Lovecraft #Miniatures #Wargaming https://l.d20.ninja/XYxcZ3

    That Dang Dad – The Cosmic Horror of Left-Wing Ideology

    https://www.youtube.com/watch?v=5pVD_UvjdF8

    #CosmicHorror #left

    The Cosmic Horror of Left-Wing Ideology

    YouTube

    ‘THE DÆMON’ Official Trailer – Lovecraftian Horror Movie Releases Later This Month

    https://lemmy.world/post/44301732

    ‘THE DÆMON’ Official Trailer – Lovecraftian Horror Movie Releases Later This Month - Lemmy.World

    https://www.dailymotion.com/video/xa1qob4 [https://www.dailymotion.com/video/xa1qob4] The Daemon will be unleashed on Screambox beginning March 24. “Grieving his father’s suicide, Tom isolates himself at a remote lakeside cottage, unaware that something ancient and malevolent lies beneath the water. As the lake begins to warp his mind and memories, Tom slips toward possession. When his wife sets out to find him, she uncovers a dark force that feeds on trauma and has already claimed this family once before.” A moody, psychological descent into grief, possession, and the terror of an inescapable past, The Daemon is written and directed by Matt Devino and David Michael Yohe. Tyler Q. Rosen, Adriana Isabel, and Sarah Fletcher star.