Sea of Silver Light (Otherland, #4)

Sea of Silver Light is a science fiction novel by American writer Tad Williams, the fourth and final book in his Otherland series. It was published in 2001 with a paperback release in 2002.It concludes the saga begun in City of Golden Shadow, taking the characters through a world being born around them as they face off against Dread and the being known as the Other.