Death and the Oxford Box (1993)

Oxford Exit (1994)

Oxford Mourning (1995)

Oxford Fall (1996)

Oxford Knot (1998)

Oxford Blue (1998)

Oxford Shift (1999)

Oxford Shadows (2001)

Oxford Double (2001)

Oxford Proof (2002)

Oxford Remains (2004)

Oxford Letters (2005)

Oxford Menace (2007)

Oxford Ransom (2011) [ebook]

Deathspell (1992)

The Rainbow Sign (1999)