Mindvalley Stories
Case Study · AI Mastery

A custom GPT and its maker co-wrote an illustrated haunted-mansion story

A custom GPT called WISE Storytelling co-wrote and illustrated The Keeper's Journey, episode by episode, through live guidance on mood and plot.

This student built a storytelling partner of their own, a custom GPT, and then used it to write The Keeper's Journey, an illustrated tale set in an ancient mansion. What stands out is how thoroughly they documented it, from the dialog that shaped each episode to literary and psychological analyses of the finished story. It shows how one person can turn an idea into a working creative tool and a finished piece of work.

Jean-Marc Wise
A creator who designs custom GPT tools for interactive, tailored storytelling.

WISE Storytelling: The Keeper's Journey

Before

They wanted storytelling that could bend to a person's own choices, not a fixed script. The question was whether an AI could hold a mood, follow themes and take plot twists while still keeping one story whole.

“By responding to guidance on mood, themes, and even plot twists, the GPT crafted each episode to fit the desired tone and atmosphere, producing a cohesive, immersive story.”

In their own words

The turning point

They built WISE Storytelling, a custom GPT that adapts to specific user inputs. Then they put it to work in a real collaboration, guiding it on mood, themes and even plot twists as it produced each episode.

After

The result is The Keeper's Journey, a cohesive story that follows a young protagonist on a haunting adventure through an ancient mansion, with images the GPT generated to match. Around it they assembled appendices with literary, symbolic and psychological analyses, a behind-the-scenes look at the craft, an article introducing the tool, and the full transcript of the original dialog.

What it lets people do

WISE Storytelling lets a person shape a story as it unfolds, steering tone, atmosphere and twists while the GPT writes and illustrates each episode. It turns a conversation into a tailored, immersive story.

What they learned

Their work suggests that an AI story is only as good as the guidance it receives. By responding to direction on mood, themes and twists, the tool could craft a story that stayed cohesive and true to the desired tone.

“The custom GPT also generated matching images to illustrate the story.”

In their own words

WISE Storytelling: The Keeper's Journey was built during AI Mastery.

Read the full submission
Using a custom GPT, WISE Storytelling allows for deep customization, adapting to specific user inputs to create highly tailored storytelling experiences. The attached document tells the story of The Keeper’s Journey. In this project, the custom GPT worked interactively with the user, generating episodes that followed a young protagonist on a haunting adventure through an ancient mansion. By responding to guidance on mood, themes, and even plot twists, the GPT crafted each episode to fit the desired tone and atmosphere, producing a cohesive, immersive story. The custom GPT also generated matching images to illustrate the story. The appendices include literary, symbolic, and psychological analyses; a behind the scenes look at how the story was crafted; an article introducing the tool and discussing applications; and a transcript of the original dialog with the GPT that resulted in the story.

Written 18 January 2025 Submitted by the storyteller

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