The Ring
Piers Anthony & Robert E. Margroff
The Book
Robert E. Margroff & Andrew J. Offutt
The E.S.P. Worm
Dragon's Gold
Adventures of Kelvin of Rud (1)
Serpent's Silver
Adventures of Kelvin of Rud (2)
Chimaera's Copper
Adventures of Kelvin of Rud (3)
Orc's Opal
Adventures of Kelvin of Rud (4)
Mouvar's Magic
Adventures of Kelvin of Rud (5)