|L: A Mathemagical Adventure|
by members of the Association of Teachers of Mathematics co-ordinated by Richard Phillips, and including Derek Ball, Tony Corbett, David Rooke, Heather Scott, Alan Shaw, Margaret Stevens, Ruth Townsend, Jo Waddingham, Roger Waddingham, John Warwick, Alan Wigley, John Wood, and David Wooldridge.
Madame L'Estrange and the Troubled Spirit, by Ian Ball and Marcus Young (1997)
Masque of the Last Faeries, by Ian Ball (2000)
The Statuette, by Ian Ball (2000)