I guess I have to be the oddball and say I have never heard of these books. Clue me in please?
Thomas Covenant, an award-winning author, has leprosy and is a pariah in his small hometown. After meeting a mysterious old man, he finds himself in a magical world called the "Land" where the carefullly rules he follows to live with his disease are assaulted. Use to living with numb hands and feet, he finds himself tasting the health of the Land with every breath, he can see the life in the living things around him, and after meeting a local woman, his leprosy is impossibly healed, returning the sense of touch to his limbs that he thought was lost forever. A pariah in his home, in the Land he is welcomed warmly and hailed as a hero of prophecy, given such warmth and welcome as he'd never experienced before.
These experiences threaten the mental stability he'd established in order to control his leprosy and live his life in what he comes to call the 'real' world. His reaction to the Land and its inhabitants becomes violent at times, and is filled with what he comes to call 'un-belief' in the Land and their need for what he brings to the land: A white-gold wedding ring that in the Land is a talisman of power great enough to destroy the planet itself. Thomas Covenant must tread a path between his ubelief, and the dangers thrown up against the Land, and him, by a being known as Lord Foul the Despiser.
Lord Foul's Bane is the first book of the collection and is the introduction to Thomas Covenant and to the Land. Covenant meets the people of the Land, and the Lords of Revelstone for the first time. He accompanies High Lord Prothall, Lord Mhoram, and others on a quest to regain the Staff of Law from Drool Rockworm, an evil creature who found the powerful Staff and has been taught its use by Lord Foul himself.
The Illearth War is the second book and Thomas Covenant is once again summoned to the Land to aid the Lords of Revelstone as Lord Foul the Despiser sends his armies against the Land. Covenant's unbelief is tested by the presence of another man in the Land, supposedly from Covenant's own world, and by the ramifications of his relationship with the new High Lord, Elena.
The Power that Preserves is the third book and Thomas Covenant is summoned to the Land for what is shaping to be the last battle of the Lords of Revelstone against Lord Foul the Despiser. The Land is awash with the forces of Lord Foul, and High Lord Mhoram leads the few survivors against a vast horde that threatens the ancient keep itself. Thomas Covenant must make some hard choices if he is to overcome Lord Foul and save the Land, and possibly reverse some of the wrongs he himself has done...
The Wounded Land takes place ten years later, for Thomas Covenant, and several millenia later in the Land. Thomas Covenant is summoned once more to the Land, this time by Lord Foul himself. The Lords of Revelstone are no more, and the Land itself lies broken under a geas by Lord Foul. Nor is Covenant alone, this time. He is accompanied by Linden Avery, a medical doctor of his world who is assaulted by the evils of the land and struggles for her sanity even as Covenant struggles for mastery of his White Gold power in order to save their lives, and the Land itself.
The One Tree is the second book of the Second Chronicles of Thomas Covenant. Covenant and Avery join the Giants of the Search in a hunt for the mythical One Tree. Their mission is simple: The creation of a new Staff of Law to replace the one lost during Covenant's third trip to the Land. Probably the hardest book of the series to read, it is still vitally important to understanding the Land and the future novels.
White Gold Wielder is the sixth book of the series and the penultimate struggle as Thomas Covenant and Linden Avery return to the land, defeated in their quest for a branch of the One Tree. Instead they take the fight first to Revelstone and the evil Clave, led by the Raver Sheol Satansfist. Then they travel to Gravin Threndor, lair of Lord Foul the Despiser, where Covenant faces Lord Foul for the last time, and Linden Avery discovers her own true abilities.
The Runes of the Earth, written nearly twenty years after the first two chronicles, is the first book of four planned in the Last Chronicles of Thomas Covenant. Dr. Avery has been pursuing a life without Thomas Covenant, working to heal the wounds of our world in memory of her lost love. One of her patients, the insane ex-wife of Thomas Covenant himself, is a constant reminder of her past, and when Roger Covenant, Thomas Covenant's son by Joan, appears, Linden knows that she is in the fight of her life. Soon she finds herself once more in the Land. Several millenia has passed and the Land is not what she had thought it would be. While Lord Foul holds her adoptive son hostage, she seeks to master Covenant's White Gold power while searching for allies among old friends and old enemies, all of whom have changed drastically over the passing millenia. Can she find the lost Staff of Law, master the power of Covenant's ring, and save her son?