Cambridge : Cambridge University Press, 2001 (2002 printing)
64 p. : map ; 20 cm. + 2 sound casettes.

"Someone's found a young woman's body in Holyrood Park. We're wanted over there immediately." "Today was my day off, " said Logan. "Not any longer," replied Grant. Did an escaped murderer kill the woman? Or was it somebody else? Can Logan find the answer to the puzzle?