When a player dies, a grave is spawned in their place. Their drops and EXP will be stored in the grave and they can be retrieved by clicking on the grave.
Void deaths are accounted for and the grave will spawn a few blocks higher than the void and/or bedrock.
Graves are invulnerable. They will not be removed from the world unless they are retrieved or marked as retrieved. Each grave has its own Unique Id.
Nobody can retrieve the contents of the grave except for the owner. The player must have the same Unique Id as the owner of the grave to be recognized as the owner of the grave.
All graves are saved in plugins/graves folder following this format: "plugins/Graves/PlayerUUID/GraveUUID.yml"
substituting playerUUID for the owner's Unique Id and GraveUUID for the grave's Unique Id.
The graves' files can be opened with a text editor such as notepad++ and they can be edited. The effects take place when the server is reloaded.
You shouldn't edit these files or folders unless you know what you are doing or it may result in errors.
Grave files remain even when the graves are retrieved or removed inside the game and you can restore graves to the game by opening a grave file and setting "Retrieved" to true then reloading the server.