Returning to work after an extended leave of absence, Detective Constable Hazel Best's first task is to shadow TV historian Oliver Ford, who has arrived in Norbold to open a new museum. What should have been a routine assignment takes a decidedly dramatic turn, however, when Hazel saves Ford from a murderous attack that would appear to be an act of jihad. But why would someone fly thousands of miles to firebomb an obscure little museum in a quiet English village? Hazel can't help but think that there's something more to this case than meets the eye. Meanwhile, Hazel's friend Gabriel Ash and her lodger Saturday are growing increasingly uneasy at Hazel's developing relationship with Oliver-but neither of them can guess at the real danger that Hazel faces nor the direction from which it will come...