Rober C. O'brien is my favorite author now. Which I like it the most from his books is Silver Crown. He has a world wide books and also a interesting story too. In the 1950s he bought a small farm near the Potomac Rive ( and used the farm as the setting for his book A Report From Group 17). However, in the 1960s he developed glaucoma and could no longer drive after dark. In 1963, he was forced to move back to the city. Now living within minutes of his job, he had time to begin to write fiction books for young adults, but he used a couldn't spend time that long, because National Geographic didn't approve of their staff writing outside work. His novel Mrs. Frisby and the Rats of NIMH won the Newberry Medal. Then unfortunately, he died with a heart attack in Washington.
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