Spectres (TSW)  

Spectres are here in flesh and bone, and they are mad.

Spectres are the victims of violent and unfair death who have chosen - or been forced - to return to the world for a time: some as spiteful troublemakers, others more miserably searching for warmth to ease their eternal cold.

Regardless of the era of their death, they manifest in bedraggled turn-of-the-century finery reflecting perhaps the place between places they now inhabit; players in a slow parade through the ragtime dirges and drowned pavilions of a frigid, underwater otherworld. Their descriptions of this haunted place match a score of submerged and forgotten towns from previous centuries, from Bittersweet to Minnewanka to Jindabyne.

Unlike the faint and harmless apparitions of the deceased - the ghosts of history and legend, mere memories replayed over and over again - Spectres are creatures with terrible mass and terrifying physicality, capable of manipulating matter and ripping an enemy's head clean off. The moaning dead haunting deserted mansions and spooking the elderly these are not.

The source of this information (the secret world website) [1]