70 Fantasy Mystery Writing Prompts: Secrets, Lost Relics & Hidden Truths

Fantasy mystery combines the wonder of magical worlds with the tension of unanswered questions. Instead of simply embarking on quests or battling dark lords, characters must uncover secrets, solve impossible crimes, decipher ancient clues, and untangle conspiracies hidden beneath the surface of kingdoms, guilds, temples, and magical societies.

The genre appears throughout fantasy literature in different forms. Stories such as The Name of the Rose blend mystery with historical fantasy elements, while works like The City & the City and The Tainted Cup explore investigations within strange and imaginative worlds. Many fantasy mysteries revolve around missing artefacts, ancient curses, forgotten histories, secret societies, magical murders, and truths powerful people would rather keep buried.

Unlike epic fantasy, where the focus is often on large-scale conflict, fantasy mystery thrives on uncertainty. Every clue raises new questions. Every answer reveals another layer of deception. The greatest challenge is not defeating an enemy but discovering who can be trusted and what really happened.

This collection of 70 Fantasy Mystery Writing Prompts is designed as a complete creative toolkit, combining plot hooks, title ideas, opening lines, closing lines, character ideas, setting prompts, and cinematic visual inspiration. These prompts explore magical investigations, hidden histories, ancient relics, secret organisations, missing persons, forgotten kingdoms, and mysteries that may have remained unsolved for centuries.

If you would like even more inspiration, explore the Fantasy Writing Hub, browse the Mystery Writing Hub, or visit the Creative Writing Archive, where hundreds of additional prompts, characters, settings, and story ideas await.

1. Plot Hooks

Fantasy mysteries often begin with something missing, something hidden, or something that should not exist.

1. Write about a scholar who discovers a historical figure appears in paintings centuries after their recorded death.

2. Write about a magical crown that vanishes from a locked vault without triggering any protective enchantments.

3. Write about an investigator searching for a missing dragon whose disappearance threatens an entire kingdom.

4. Write about a librarian who discovers several books have removed themselves from the shelves.

5. Write about a city where every statue suddenly turns to face the same direction.

6. Write about an ancient map that changes each night to reveal new locations.

7. Write about a prince who receives letters from someone who officially died fifty years ago.

8. Write about a wizard hired to solve a murder where the victim's ghost refuses to speak.

9. Write about a kingdom where all records of a former queen have mysteriously disappeared.

10. Write about an explorer who discovers evidence that a legendary lost city was deliberately erased from history.

2. Title Ideas

Fantasy mystery titles often suggest secrets, discovery, hidden knowledge, and forgotten histories.

1. The Kingdom Beneath the Lake

2. The Last Archivist

3. The Crown Without a King

4. Secrets of the Hollow Tower

5. The Missing Dragon

6. Beneath the Seventh Seal

7. The Library of Lost Names

8. The Mapmaker's Secret

9. Whispers from the Forgotten Kingdom

10. The Relic That Never Existed

3. Opening Lines

Strong fantasy mystery openings introduce questions that immediately demand answers.

1. The body appeared exactly where the prophecy said it would.

2. Nobody could explain why the castle had gained an extra room overnight.

3. The dragon's footprint was still warm.

4. The missing crown returned before anyone found the thief.

5. Every map in the kingdom suddenly became inaccurate.

6. The ghost arrived carrying evidence.

7. By sunrise, the ancient monument had vanished.

8. The king recognised the handwriting immediately.

9. The library had lost an entire century.

10. The first clue was hidden inside a fairy tale.

4. Closing Lines

Fantasy mystery endings often reveal truths while leaving echoes of uncertainty.

1. The mystery was solved, but the kingdom would never recover from the answer.

2. Some secrets had remained buried for good reason.

3. The relic returned to its resting place.

4. The truth changed everything they believed about their world.

5. The final clue pointed towards an even older mystery.

6. History would have to be rewritten.

7. The dragon had never been missing at all.

8. The kingdom celebrated while the real culprit escaped.

9. The archive was sealed once more.

10. The story everyone knew turned out to be a lie.

5. Character Ideas

Fantasy mystery characters are often investigators, scholars, witnesses, and keepers of secrets.

1. A royal historian obsessed with proving an official account is false.

2. A magician who specialises in recovering lost memories.

3. A former thief hired to locate stolen magical artefacts.

4. A temple guardian protecting secrets older than the kingdom itself.

5. A young prince determined to solve the disappearance of their predecessor.

6. A dragon who secretly collects unsolved mysteries.

7. An archivist who knows far more than they admit.

8. A bounty hunter hired to find a missing sorcerer.

9. A cartographer who discovers impossible locations on ancient maps.

10. A fortune teller whose visions only reveal fragments of the truth.

6. Setting Ideas

Fantasy mysteries thrive in places filled with secrets, history, and unanswered questions.

1. A vast underground archive containing forbidden records.

2. A city built on the ruins of an older civilisation.

3. A remote monastery that guards a dangerous secret.

4. A magical university where several professors have vanished.

5. A forest filled with abandoned monuments.

6. A floating city whose founders disappeared centuries ago.

7. A forgotten royal palace hidden beneath a modern capital.

8. A network of caves covered in ancient prophecies.

9. An island that only appears during certain phases of the moon.

10. A museum displaying artefacts from a civilisation nobody remembers.

7. Picture Prompts

Visual prompts can help capture the atmosphere of discovery, secrecy, and hidden histories that define fantasy mystery stories. Use these images as inspiration for lost kingdoms, magical investigations, forgotten relics, hidden archives, missing rulers, secret organisations, and ancient truths waiting to be uncovered. Look closely at the clues, architecture, objects, expressions, and details within each image, then imagine the mystery behind them.

Go Deeper into Fantasy Mystery Writing

The strongest fantasy mysteries are built around questions rather than action. Focus on clues, hidden motives, conflicting accounts, and gradual revelations. Allow readers to solve the mystery alongside your characters while keeping enough uncertainty to maintain tension.

◆ Consider how magic affects investigations and evidence.

◆ Explore how myths, legends, and official histories can hide the truth.

◆ Think about who benefits from keeping certain secrets buried.

◆ Use unreliable witnesses, missing records, and forgotten locations to deepen the mystery.

Final Thoughts

Fantasy mystery offers the perfect blend of wonder and suspense. By combining magical worlds with investigations, hidden histories, ancient relics, and carefully layered clues, writers can create stories that keep readers turning pages long after the first mystery appears.

These 70 Fantasy Mystery Writing Prompts invite writers to explore forgotten kingdoms, secret societies, magical crimes, missing artefacts, and truths hidden beneath centuries of myth and legend. Whether you are planning a novel, developing a fantasy world, or searching for your next story idea, these prompts provide countless opportunities for intrigue and discovery.

For more inspiration, explore the Fantasy Writing Hub, visit the Mystery Writing Hub, or browse the Creative Writing Archive, where hundreds of additional prompts, characters, settings, and story ideas are waiting to be uncovered.

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