©Alexandre Lamoureux
Unravel the secretthe abgrall mystery

The Abgrall Mystery

Discover Tréguier and La Roche-Derrien in a different way thanks to the first heritage treasure hunt! Follow in the footsteps of Erwann Abgrall and find the heirs to his immense fortune…
Share your experience on social networks with #MystereAbgrall!

On the trail of Abgrall

Erwann Abgrall, a wealthy eccentric from Brittany, has disappeared, leaving behind an immense fortune, albeit of mysterious origin. Maître Braouzec, a notary in Rennes, has been asked to settle the deceased’s estate. However, the matter promises to be a thorny one: Erwann Abgrall left neither a will nor an heir. Worse still, the usual genealogical research, which is Braouzec’s specialty, has yielded no results…

Your mission orders

Follow in the footsteps of this curious character to solve the riddles and contribute to the resolution of this life-size investigation: bring your game equipment to solve the riddles of the 8 trails in season 2 of the “Abgrall Mystery” and retrace the history of the Abgrall family in Tréguier and La Roche-Derrien.

Your first priority: find the first and last names of even distant relatives, as well as known addresses.

Your second priority: find out all the general details about family destinies…

Finished your investigation? Don’t forget to pass on your findings to Cabinet Braouzec by going to the “Abgrall case” tab!

Teaser Mystère Abgrall
Teaser Mystère Abgrall
Teaser Mystère Abgrall

“An ideal route to discover all the riches of the local heritage of Tréguier and La Roche-Derrien!”

from 12 years old


Take part in the treasure hunt

  • Visit the OFFICE DE TOURISME DE TRÉGUIER to borrow your “investigator’s kit”.
  • Or download and print the kits directly from the Tourisme Bretagne website.
  • Bring a sheet of paper and a pencil for a better game experience!
  • Your survey will last at least 2 hours. It can be extended to a full day.

New treasure hunt in Tréguier

More mystery to discover

For young & old

Looking for a different kind of treasure hunt? For ages 8 and up? Discover the treasure hunt in the heart of Tréguier, in search of the secret manuscript of Ernest Renan, the famous writer born in the Petite Cité de Caractère®. The booklet of the treasure hunt in the heart of Tréguier is available from the Tourist Information Office in Tréguier.

Cultivating experience