Player Skeletons are a special type of mob in Aberoth, located only in the desert tomb. When a player dies there, their skeleton will remain there as a hostile mob. They have all the exact same stats as a regular skeleton, and supposedly the same drops, also. Above their head, It will read '<playerthatdiedname>'s Skeleton', instead of Just 'Skeleton'. Please Note: When a player dies, they will not take control of the skeleton. They will appear in the respawn room, but their skeleton will remain in the tomb until it is killed.
That skeleton will also likely pick up your items, since the mob was standing on them when you dropped them upon dieing.