Threshold

ISBN:1-4391-3360-3, $25.00
Hardcover (June 2010)

Grand Central Arena

ISBN:1-4391-3355-7, $7.99
Paperback (May 2010)

Boundary

ISBN:1-4165-0932-1, $26.00
Hardcover (March 2006)

ISBN:1-4165-5525-0, $7.99
Paperback (February 2008)

DOI:1416509321, $6.00
eBook (March 2006)

Mountain Magic

ISBN:0-7434-8856-3, $6.99
Paperback (October 2004)

DOI:0743488563, $4.00
eBook (October 2004)

Digital Knight

ISBN:0-7434-7161-X, $7.99
Paperback (October 2003)

DOI:074347161X, $4.00
eBook (October 2003)