Enigma about an item

Hello minecrafters.

So, I'm on a french server and someone started a game, with an enigma. So far no one found out in 24hours. We tried every logical items of the game. And I'm curious what y'all could think off

Fr :Se repérer sur une route voué à être perdu. Qui guide mais ne suis pas dans la tombe

En: Finding your way on a road destined to be lost. One who guides but does not follow into the grave

It's a vanilla item.

(Don't say compass, coordinates or stuff like that we tried it ALL even arrows. So, if y'all can find some ideas 😉) .