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Tony Abbott
Tony Abbott is an American author of children's books. His most popular work is the book series The Secrets of Droon, which includes over 40 books. He has sold over 12 million copies of his books and they have been translated into several other languages, including Italian, Spanish, Korean, French, Japanese, Polish, Turkish, and Russian. He has also written Firegirl and The Copernicus Legacy.
Excerpt from Wikipedia, available under CC BY-SA 4.0.
Books

The riddle of Zorfendorf Castle
2005
ISBN 9780439671736
Escape from Jabar-Loo
2007
ISBN 9781428742765