the Ghostbloods were obsessed with a specific spren named Ba-Ado-Mishram. That was a name from myth, one of the Unmade. It had been this spren who had taken over for Odium following the Final Desolation; she had granted the singers forms of power. By capturing Ba-Ado-Mishram—locking her in a gemstone—humankind had stolen the minds of the singers in ancient times.
