"An imaginative thriller."-Publishers Weekly ***** Music can be many things, but when it is used a medium to spread a deadly virus that transports listeners to a deadly world of dreams, it threatens the future of humanity itself.*** But not everyone is susceptible to the deadly virus and there is a group of "stalkers" who are immune to its effects. *** Francis Lanier is a stalker who can walk through the deadly dream worlds of others. He spends his time rescuing others from their dreams and races to find a final cure for this deadly infection.