| Title | Anthology / Reprint | Year | Series | Note |
| Summer of the Wild Pig | 1979 | |||
| Beasts of the field: Puzzles featuring the animals of the Bible | 1979 | |||
| Getting into the Bible | 1979 | |||
| Melon Hound | 1980 | |||
| The Horse Who Loved Picnics | 1980 | |||
| The Arizona Longhorns Adventure | 1980 | |||
| Rescue in the Desert | 1981 | |||
| Mystery at McGeehan Ranch | 1982 | |||
| Socorro Island Treasure | 1983 | |||
| Chain Five Mystery | 1984 | |||
| Songs of the Nereids | 1984 | |||
| Summer Snow | 1984 | |||
| Winterspring | 1985 | |||
| This Rolling Land | 1986 | |||
| Opal Fire | 1986 | Rita Award 1987 | ||
| To Die in the Queen of Cities | 1986 | |||
| Jungle Gold | 1987 | |||
| Smokey a Simple Country Bear Who Made Good | 1987 | |||
| Susanna Wesley: Servant of God | 1987 | |||
| Code of Honor | 1988 | Australian Destiny | ||
| Florence Nightingale: Fictionalized Biography | 1988 | |||
| Florence Nightingale : Nurse to Soldiers | 1988 | |||
| The Power of Pinjarra | Australian Destiny Series | 1989 | Australian Destiny | |
| Taste of Victory | Australian Destiny Series | 1989 | Australian Destiny | |
| East of Outback | Australian Destiny Series | 1990 | Australian Destiny | |
| Death Valley | 1993 | Jack Prester | ||
| Dublin Crossing | 1993 | Heroes of the Misty Isle | ||
| Cat Killer | 1993 | |||
| Mouse Trapped | 1993 | |||
| The Last Dinosaur | 1994 | |||
| The Shamrock Shore | 1994 | |||
| Gila Monster | 1994 | |||
| The Emerald Sea | 1994 | |||
| The Headache Book | 1994 | |||
| A Model Murder | 1995 | Jack Prester | ||
| Murder on the Mount | 1995 | Jack Prester | ||
| The Quick and the Dead | 1995 | Jack Prester | ||
| Fatal Fishes | 1995 | |||
| King of the Stars: Saint Columba's Journey to Scotland | 1995 | |||
| Fanny Crosby: Writer of 8,000 Songs | 1995 | |||
| John Bunyan: Writer of Pilgrim's Progress | 1995 | |||
| D. L. Moody: God's Salesman | 1995 | |||
| Ageless Love | Ageless Love | 1996 | ||
| Hyenas | 1998 | |||
| The Big Bike Mystery | 2001 | New Sugar Creek Gang | ||
| The Case of the Cold Turkey | 2001 | New Sugar Creek Gang | ||
| The Case of the Dinosaur in the Desert | 2001 | New Sugar Creek Gang | ||
| The Case of the Loony Cruise | 2001 | New Sugar Creek Gang | ||
| The Case of the Monster in the Creek | 2001 | New Sugar Creek Gang | ||
| The Case of the Red Hot Possum | 2001 | New Sugar Creek Gang | ||
| The Comatose Cat | 2004 | |||
| The Wicked Step-Twister | 2005 |