Mountain of Black Glass is the third volume of Tad Williams' highly acclaimed four-book series, Otherland. A truly unique reading experience combining elements of science fiction,fantasy, and techno-thriller, it is a rich epic tale in which virtual reality could prove the key to a whole new universe of possibilities for the entire human race--or become the exclusive domain of the rich and the ruthless as they seek a technological pathway to immortality....
Praise for the Otherland series:

Tad Williams is the brightest and best of the fantasists working in what is so often, and so inaccurately, described as ‘the tradition of J.R.R. Tolkien’.” ―Neil Gaiman, author of American Gods

“Irresistible characters, challenging ideas, an intricate, and startlingly possible plot―everything any reader of SF or fantasy could ask for in a novel, with gorgeous writing besides. A dazzling book.” ―Melanie Rawn, author of Dragon Prince

“This brilliantly crafted book delivers even more than its title promises: not one other land but many come to life here, each engrossing, glittering, and dangerous. In this intricate geography of the mind Williams tells a cracking good story, but even as the suspense builds, you come to realize that you’re seeing a strangely familiar world―ours as it might come to be. Otherland is one of the best works of science fiction I’ve ever read.” ―Kathrine Kerr, author of the Dragon Mage series

“Once again, Williams displays remarkable talent in making the unbelievable seem more than plausible. The many virtual worlds he creates in Otherland offer entertainment, insights, and commentary on a near-future earth that is often downright scary simply because it seems so familiar―in a bad sort of way. The author manages to portray a callous, uncaring society that still has concerned and unselfish citizens.” ―Off The Shelf

“This is a finely-written, absorbing book, a worthy addition to what is, so far, one of the best series I’ve ever read.” ―SF Site