Simon Tregarth, whose own Earthly prowess had won him a throne and a witch-wife in an alien world, knew that both triumphs were precarious as long as the super-science of Kolder held a foothold on that planet. And his premonitions were right when those invaders from another dimension made their final diabolical strike for total conquest.
- ISBN10 0426050207
- ISBN13 9780426050209
- Publish Date 16 December 1970
- Publish Status Out of Print
- Out of Print 18 October 2003
- Publish Country GB
- Imprint TBS The Book Service Ltd
- Format Paperback
- Pages 192
- Language English