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Michael Bilton is a former Sunday Times investigative journalist and an award-winning documentary film maker. He won an Emmy for his documentary on the My Lai massacre and his book, Four Hours in My Lai, was a bestseller that won plaudits all over the world.

Lyman Frank Baum (1856–1919) was an American children’s book author, best known for The Wonderful Wizard of Oz. He wrote thirteen novel sequels, nine other fantasy novels, and several other works (55 novels in total, plus four “lost” novels, 83 short stories, over 200 poems, an unknown number of scripts, and many miscellaneous writings).