What do you do when neither cross nor crescent can bar the door? There are such things as come by day or by night, and those that can bear the bright sun may be far more dangerous. So today’s piece is an early moment in a series of tales vaguely called Revenance, which concerns a threat which is not easily stopped, contained or thwarted. No traditional vampires, no siring, romance or classic vulnerabilities. Just those who have been Returned…