- (1978) Novel (featuring Father Robert Koesler): The Rosary Murders
- (1980) Novel (featuring Father Robert Koesler): Death Wears a Red Hat
- (1981) Novel (featuring Father Robert Koesler): Mind Over Murder
- (1982) Novel (featuring Father Robert Koesler): Assault with Intent
- (1983) Novel (featuring Father Robert Koesler): Shadow of Death
- (2002) Novel (featuring Father Robert Koesler): The Gathering
- (1999) Novel (featuring Father Robert Koesler): The Sacrifice
- (2000) Novel (featuring Father Robert Koesler): Till Death
- (1999) Novel (featuring Father Robert Koesler): No Greater Love
- (1998) Novel (featuring Father Robert Koesler): The Greatest Evil
- (1997) Novel (featuring Father Robert Koesler): The Man Who Loved God
- (1996) Novel (featuring Father Robert Koesler): Requiem for Moses
- (1995) Novel (featuring Father Robert Koesler): Call No Man Father
- (1994) Novel (featuring Father Robert Koesler): Bishop As Pawn
- (1993) Novel (featuring Father Robert Koesler): Dead Wrong
- (1992) Novel (featuring Father Robert Koesler): Body Count
- (1991) Novel (featuring Father Robert Koesler): Chameleon
- (1990) Novel (featuring Father Robert Koesler): Masquerade
- (1989) Novel (featuring Father Robert Koesler): Eminence
- (1988) Novel (featuring Father Robert Koesler): Marked for Murder
- (1987) Novel (featuring Father Robert Koesler): Deadline for a Critic
- (1986) Novel (featuring Father Robert Koesler): Deathbed
- (1985) Novel (featuring Father Robert Koesler): Sudden Death
- (1984) Novel (featuring Father Robert Koesler): Kill and Tell
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