Author of The secret of Terror Castle and The secret of Skeleton Island: Robert Arthur. _ Author of The mystery of the invisible dog : M.V. Carey based on characters created by Robert Arthur.
The secret of Terror Castle. Originally published: New York : Random House, 1964; London : Collins, 1967 _ The secret of Skeleton Island. Originally published : New York : Random House, 1966 ; London : Collins, 1968 _ The mystery of the invisible dog. Originally published : New York : Random House, 1969, London : Collins, 1976.
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The Three investigators in The secret of Terror Castle, The secret of Skeleton Island, The mystery of the invisible dog by Robert Arthur. ISBN 0006924484. Published by Fontana Paperbacks in 1984. Publication and catalogue information, links to buy online and reader comments.
