Hidden Ghost TombStone, Is there something to do ?

[Akharum]

Hello everyone,

I discovered at the top left of the map where there are orange trees on the left of it, if you go there at night there are Hidden Ghost Tombstone which are blue and not white in circle and I don't know what to do there. It doesn't feel like a random thing.

Does anyone knows ?

[Lord Bob]

They usually feature a Larval Tear that can be collected and used to respec your character at Rennala. The tombstones appear every now and then in the Shadow Lands when it's night.