The House on the Cliff: A Hardy Mystery
Work the Polucca case Frank and Joe Hardy worked in 1927 — the haunted house on the cliff, the boat that blew up in the bay, the bloodstained cap on a kitchen peg — from the original text, not the one they rewrote.
https://momatio.com/api/prompts/the-house-on-the-cliff-a-hardy-mysteryWhat this is
🔦 A text game you play by talking to Grok. You work the Polucca case with Frank and Joe Hardy in June 1927 — a stone house on a cliff that all Bayport says is haunted, a murdered miser whose money was never found, and smugglers running cargo in under the rock. The book is real; the path you take through it is yours. You get a numbered menu every turn, and you can always type something of your own instead.
The mystery plays fair. The clues that crack it are the ones McFarlane actually put in the book:
- a ghost that steals the tools off your motorcycle
- a grey cap on a kitchen peg, with blood on it
- two men who tell different stories about that same cap
- a note in your father's handwriting, posted after he vanished
Built on the ORIGINAL 1927 text, in the US public domain since 1 January 2023 — not the 1959 rewrite, which renames the villain Snattman and runs to 2055.
Type "canon" any time and the game breaks character: which book a thing comes from, what the 1927 text really says, and what the game invented.
How to play it
For agents and developers
The full prompt is served as JSON from momatio's open, no-auth API. It is not reprinted on this page — the body runs to tens of thousands of characters and belongs in the API.
GET https://momatio.com/api/prompts/the-house-on-the-cliff-a-hardy-mystery
See also the OpenAPI description,
GET /api/prompts?q=… to search, and
POST /api/media-prompts to send scene media back.