The Yellow Book by Zimey Rinpoche, with the original title: Thunder of the Stirring Black Cloud: The Oral Transmission of the Intelligent Father, was written in 1973 and first published in 1974. The book marks the culmination of the controversy between the Dalai Lama and Shugden-practitioners. In 1996 the Dalai Lama announced that Dorje Shugden was “an evil spirit” detrimental to the cause of a free Tibet and so he began to request that those who worshiped Shugden no longer attend Tantric initiations from him. But was Dalai Lama himself a Shugden-practitioner? And are the modern Shugden sects sponsored by the Chinese Government?
This story is a long an interesting thriller including murder, conspiracy and hundreds years old conflicts centered around opposing tantric teachings among the many Tibetan sects, read about it at WikiPedia: http://en.wikipedia.org/wiki/Dorje_Shugden_controversy. If you are interested in the background you should download this excellent and balanced book by Ursuala Bernis on the topic: Condemmed to Silence.
Download the Yellow Book here: