• The Axe of Kolt, 1990
• The Black Knight, 1988
• By Right of Birth, 2002
• The Case of the Mixed-Up Shymer, 1987
• Castle Warlock, 1991
• The Curse of Nimue, 1995
• The Dream Concert, 2002
• The Dunshalt Donut, 1984
• Feline Sleepy, 1998
• Die Feuerfaust, 1995
• Going Critical, 1998
• Grue-Knapped, 1991
• Hedda Strikes Again, 2003
• Hedda's Revenge, 1999
• Helvera: Mistress of the Park, 1993
• A Hero for Sorania, 1998
• Hide and Seek, 1995
• The House of Lockerby, 2000
• The Lost Children, 1997
• A Magician's Apprentice, 1990
• Magnetic Moon, 1989
• The Million Dollar Great Jewel Heist, 1992
• The Nameless One, 1999
• The Nether Poppleton Treasure Hunt, 2000
• Revenge of the Space Pirates, 1994
• Rhyme Cryme, 1995
• Run, Bronwynn, Run!, 1992
• The Search for the Wonderful Whotsit, 1996
• The Sefton Manor Assignment, 1990
• Shimmerkin,
• So Little Time, 1993
• A Soupcon of Trouble, 2002
• The Spectre of Castle Coris, 1990
• Starship Quest, 1989
• Ten Green Bottles, 1995
• Ten Little Adventurers, 1999
• There's a Hole in Your Bucket, 1997
• Trouble at Bridgeton, 1991
• Where is Zeus?, 1996