This is the novel of four who defied the powers of the matrix guardians - fanatics who protected those powers so that the planet of the ruddy sun might never fall beneath the infulence of materialistic Terrans. The four who found themselves fused into a terrifying unity that in defiance were two men and two women. All the forces of Ancient Darkover were to combine to resist this unnatural alliance, and the novel that grew out of this physical and psychic conflict displays the talent of Marion Zimmer Bradley at its finest.
Arguably the best of the Darkover series. Bradley creates four characters whose intertwined lives challenge the authority of the Keepers and pits them in battle against a powerful enemy. This really should have been published with "The Spell Sword" in a single volume, as it is one story, but the economics of fantasy publishing at the time made it impractical. That's a disservice to the reader, because TSS is pretty weak tea by itself.
This is the novel of four who defied the powers of the matrix guardians - fanatics who protected those powers so that the planet of the ruddy sun might never fall beneath the influence of materialistic Terrans.
All the forces of ancient Darkover were to combine and resist this "unnatural" alliance. The story of the building of the Forbidden Tower will and its ultimate fate will stand high in the bestselling Darkover series.