The lost symbol /

By Brown, Dan,. New York : Doubleday, 2009 . 509 pages. : , "Originally published in hardcover without illustrations in slightly different form by Doubleday, a division of Random House, Inc., New York, in 2009."--T.p. verso. 26 cm.. 9780385504225 [hardbound]

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Beyond the grave /

By Watson, Jude. New York, NY : Scholastic Inc., 2009 . 190 pages : 20 cm +. 9780545060448 [hardbound] | 0545060443 [hardbound]

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University of Cebu-Banilad Library Search for 'index-term-genre:"Code and cipher stories."'

The lost symbol /

Beyond the grave /