Spectrals in Emps-World can be found deep in the Wilderness, when digging in the Forgotten cemetery. These Spectrals drop the pvp items Statius's armour, Vesta's armour, Morrigan's armour and Zuriel's robes.
They are fairly strong but can only be fought one by one, similar to the Barrow Brothers. Be aware that you can be attacked while you are fighting one of these spectrals!
There are four different spectrals, each dropping a different set of pvp items: