Found Anthony Grey's Hostage in Peking at the Open Library online and promptly borrowed it. Think that the accounts of Peter Greste's attempts to stay mentally and physically fit while in prison in Cairo reminded me of Grey's memoir of his long period in solitary confinement in 1967 during the Cultural Revolution. Read it a very long time ago, probably shortly after it was published in 1971, and it's stuck with me. Have always wanted to show it to J and now can.