Rashiliyia's Tomb is the final burial ground for the zombie queen, Rashiliyia. The tomb is visited during the Shilo Village quest, where it was taken over by Nazastarool. After the quest, the dungeon is filled with undead ones. If you are inside without wearing Beads of the Dead, Rashiliyia will appear, briefly attack, and summon two level 68 and one level 73 undead ones.
The entrance to the tomb.
To get to the tomb, go north beyond the temple of Ah Za Rhoon. There will be stone doors in the ground to enter, provided a bone key is used on them. It may be re-bought after the quest from Yanni Salika.