A Place Among the Fallen

1986

The Sword of Shadows

2011

Samhain Sorceries

2022

Elak, King of Atlantis

2020

Warlord of Heaven

2013

Moorstones

1982

Bane of Nightmares

1976

The Long Reach of Night

2011

The Thinking Past

Questions and Problems in World History to 1750

2014

Nick Nightmare Investigates

2014

Labyrinth of Worlds

1993