For years Harry Tennant has lived alone in the backwoods of upstate New York, tending his yearly marijuana crop and trying to stay out of trouble. A burned-out product of the sixties drug culture, its receding tide has left him clinging to society's margins, wanting only to be left in peace.
Then one day Tennant's self-imposed exile is shattered by the appearance of a young journalist, Alison Seagrove, who confronts him with a fragment of his disordered past in the form of an old photograph. The picture of five hippies taken on a San Francisco street in 1968 had become a famous image, a snapshot of a nation's hopes and ideals before they soured and died. But according to Alison two of the hippies are dead, and two are missing - leaving one survivor: Tennant. One man who can explain the photograph's ominous secret.
Except that Tennant's memory of the other people in the photograph, of San Francisco and 1968, is a disturbing blank.
Convinced that Tennant's only hope is to rediscover his past before it catches up with him, Alison persuades him to join her on a journey into that puzzling lost world. But it's a trip that could have lethal consequences for them both.
A mystery story, a love story, a story of intrigue and shocking revelation, CONCERT OF GHOSTS is an irresistibly compelling tour de force that takes the reader inexorably down a twisted path to the heart of a stunning conspiracy.
'A strong candidate for "Thriller of the Year"... Certainly I have not read one better' - Daily Telegraph
'Lashings of lavishly-drawn characters and detonating booby traps... Scores a thumping hit' - The Observer
'Headline-fresh conspiracy thriller... both pacy and tantalising' - The Guardian
'Armstrong's feeling for sullen foreign locations, and a flair for the jigsaw work of plotting, put this in the memorable category' - Daily Telegraph
'Full throttle adventure thriller' - The Guardian
'Dynamic, pacy and full of unexpected twists - the work of a real master of the genre' Scotland on Sunday - AGENTS OF 
'Subtle and marvellous... this is a dazzling book' - Daily Telegraph
'Campbell Armstrong is a wonderfully atmospheric writer who shines a light into the dark corners of the human heart' - Sunday Telegraph