In PB Morlen's fourth novel, Blue Crystal Mountains, the tale of Crystal Blue continues. In a remote area of the Tibetan Himalayas-so high up Heaven and Earth embrace-is the mysterious and holiest mountain in the world, the diamond-shaped snow mountain Kailas. To repair the harm she's done, Crystal must make a sacred pilgrimage around the mountain that can erase the sins of a lifetime. She is seeking forgiveness from Tara-a mysterious and green-eyed goddess.