Tom is having nightmares of the night,ten years earlier,when,on Halloween,his mother Helen died after protecting him from an alien force. Soon afterwards he starts to see her and Randal explains that she is a 'pale shadow',come to warn him of danger. Eventually he meets her but she has no memory of who she or Tom are. She directs him to a warehouse,which was her most recent memory but the warehouse is occupied by Nekross,who are making clones of Helen to obtain her magic.
—don @ minifie-1