The Serpent M'gulfn has been destroyed, its dark reign ended - but its death has unleashed dangerous energies that threaten the Earth of Three Planes anew. Journeying to Gorethria comes Melkavesh, daughter of Ashurek, determined to harness the new potential of sorcery for good. It seems she is too late, for a ruthless usurper, Duke Xaedrek, has already seized power. Aided by a demon with malign ambitions of its own, he is working to restore the evil Gorethrian Empire. To save the Earth, Melkavesh must defeat him - even though their conflict may bring other lands to ruin, claim innocent victims, and even cause the moons to fall. Melkavesh may avert disaster only if she heeds the mysterious Lady of H'tebhmella. But can she withstand the temptation to reclaim her birthright - the dark throne renounced by Ashurek - or resist the all-too-seductive charm of Xaedrek himself? Freda Warrington's classic, weirdly atmospheric fantasies A Blackbird in Amber and A Blackbird in Twilight appear for the first time in a single, complete volume.