With more than 54 books to his credit, J.H. Brennan was a professional writer whose work appeared in more than 50 countries. He also created boxed games and computer software. He had broadcast and lectured widely throughout the U.K. and Ireland.
Series
Grail Quest
1. The Castle of Darkness (1984)
2. Den of Dragons (1984)
3. The Gateway of Doom (1984)
4. Voyage of Terror (1985)
5. Kingdom of Horror (1985)
6. Realm of Chaos (1986)
7. Tomb of Nightmares (1986)
8. Legion of the Dead (1987)
1. The Castle of Darkness (1984)
2. Den of Dragons (1984)
3. The Gateway of Doom (1984)
4. Voyage of Terror (1985)
5. Kingdom of Horror (1985)
6. Realm of Chaos (1986)
7. Tomb of Nightmares (1986)
8. Legion of the Dead (1987)
Sagas of the Demonspawn
1. Fire*Wolf (1984)
2. The Crypts of Terror (1984)
3. Demondoom (1985)
4. Ancient Evil (1985)
1. Fire*Wolf (1984)
2. The Crypts of Terror (1984)
3. Demondoom (1985)
4. Ancient Evil (1985)
Barmy Jeffers
Barmy Jeffers and the Quasimodo Walk (1988)
Return of Barmy Jeffers and the Quasimodo Walk (1988)
Barmy Jeffers and the Shrinking Potion (1989)
Barmy Jeffers and the Quasimodo Walk (1988)
Return of Barmy Jeffers and the Quasimodo Walk (1988)
Barmy Jeffers and the Shrinking Potion (1989)
Novels
Power Play (1977)
Dark Moon (1980)
The Curse of Frankenstein (1986)
Dracula's Castle (1986)
Monster Horrorshow (1987)
The Crone (1990)
Ordeal by Poison (1992)
Marcus Mustard (1994)
The Gravediggers (1996)
Blood brother (1997)
Dark Moon (1980)
The Curse of Frankenstein (1986)
Dracula's Castle (1986)
Monster Horrorshow (1987)
The Crone (1990)
Ordeal by Poison (1992)
Marcus Mustard (1994)
The Gravediggers (1996)
Blood brother (1997)
Collections
Non fiction show
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